2201021210100 has 36 divisors (see below), whose sum is σ = 6368288035424. Its totient is φ = 586938989280.

The previous prime is 2201021210093. The next prime is 2201021210123. The reversal of 2201021210100 is 10121201022.

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

It is a congruent number.

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, 3668368384 + ... + 3668368983.

Almost surely, 2^{2201021210100} is an apocalyptic number.

2201021210100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201021210100 is an abundant number, since it is smaller than the sum of its proper divisors (4167266825324).

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

2201021210100 is a wasteful number, since it uses less digits than its factorization.

2201021210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7336737384 (or 7336737377 counting only the distinct ones).

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

Adding to 2201021210100 its reverse (10121201022), we get a palindrome (2211142411122).

The spelling of 2201021210100 in words is "two trillion, two hundred one billion, twenty-one million, two hundred ten thousand, one hundred".