22121112112002 has 24 divisors (see below), whose sum is σ = 48098436947184. Its totient is φ = 7347648544344.

The previous prime is 22121112111947. The next prime is 22121112112009. The reversal of 22121112112002 is 20021121112122.

22121112112002 is a `hidden beast` number, since 221 + 21 + 11 + 211 + 200 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (22121112112009) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2171285848 + ... + 2171296035.

It is an arithmetic number, because the mean of its divisors is an integer number (2004101539466).

Almost surely, 2^{22121112112002} is an apocalyptic number.

22121112112002 is an abundant number, since it is smaller than the sum of its proper divisors (25977324835182).

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

22121112112002 is a wasteful number, since it uses less digits than its factorization.

22121112112002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4342582174 (or 4342582171 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 22121112112002 its reverse (20021121112122), we get a palindrome (42142233224124).

The spelling of 22121112112002 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twelve million, one hundred twelve thousand, two".