10222121100 has 36 divisors (see below), whose sum is σ = 29576004584. Its totient is φ = 2725898880.

The previous prime is 10222121099. The next prime is 10222121111. The reversal of 10222121100 is 112122201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17036569 + ... + 17037168.

Almost surely, 2^10222121100 is an apocalyptic number.

10222121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222121100 is an abundant number, since it is smaller than the sum of its proper divisors (19353883484).

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

10222121100 is a wasteful number, since it uses less digits than its factorization.

10222121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34073754 (or 34073747 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10222121100 its reverse (112122201), we get a palindrome (10334243301).

It can be divided in two parts, 102221 and 21100, that added together give a palindrome (123321).

The spelling of 10222121100 in words is "ten billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred".