2101225104 has 80 divisors (see below), whose sum is σ = 6579608640. Its totient is φ = 636733440.

The previous prime is 2101225097. The next prime is 2101225141. The reversal of 2101225104 is 4015221012.

2101225104 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216337 + ... + 225840.

It is an arithmetic number, because the mean of its divisors is an integer number (82245108).

Almost surely, 2^2101225104 is an apocalyptic number.

2101225104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2101225104 is an abundant number, since it is smaller than the sum of its proper divisors (4478383536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2101225104 is a wasteful number, since it uses less digits than its factorization.

2101225104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442205 (or 442193 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2101225104 is about 45839.1219811200. The cubic root of 2101225104 is about 1280.8281392220.

Adding to 2101225104 its reverse (4015221012), we get a palindrome (6116446116).

It can be divided in two parts, 2 and 101225104, that added together give a triangular number (101225106 = T₁₄₂₂₈).

The spelling of 2101225104 in words is "two billion, one hundred one million, two hundred twenty-five thousand, one hundred four".