22121121002010 has 32 divisors (see below), whose sum is σ = 53098869995712. Its totient is φ = 5898056757120.

The previous prime is 22121121001957. The next prime is 22121121002023. The reversal of 22121121002010 is 1020012112122.

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 56604739 + ... + 56994198.

It is an arithmetic number, because the mean of its divisors is an integer number (1659339687366).

Almost surely, 2^{22121121002010} is an apocalyptic number.

22121121002010 is an abundant number, since it is smaller than the sum of its proper divisors (30977748993702).

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

22121121002010 is a wasteful number, since it uses less digits than its factorization.

22121121002010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113605438.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 22121121002010 its reverse (1020012112122), we get a palindrome (23141133114132).

The spelling of 22121121002010 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-one million, two thousand, ten".