222100021210120 has 128 divisors (see below), whose sum is σ = 504849229597440. Its totient is φ = 87933645619200.

The previous prime is 222100021210117. The next prime is 222100021210121. The reversal of 222100021210120 is 21012120001222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 222100021210094 and 222100021210103.

It is not an unprimeable number, because it can be changed into a prime (222100021210121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10977107524 + ... + 10977127756.

It is an arithmetic number, because the mean of its divisors is an integer number (3944134606230).

Almost surely, 2^{222100021210120} is an apocalyptic number.

222100021210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222100021210120 is an abundant number, since it is smaller than the sum of its proper divisors (282749208387320).

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

222100021210120 is a wasteful number, since it uses less digits than its factorization.

222100021210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27215 (or 27211 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 222100021210120 its reverse (21012120001222), we get a palindrome (243112141211342).

The spelling of 222100021210120 in words is "two hundred twenty-two trillion, one hundred billion, twenty-one million, two hundred ten thousand, one hundred twenty".