21222202112002 has 16 divisors (see below), whose sum is σ = 32068492365312. Its totient is φ = 10532942583280.

The previous prime is 21222202111991. The next prime is 21222202112009. The reversal of 21222202112002 is 20021120222212.

It is not an unprimeable number, because it can be changed into a prime (21222202112009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59302873 + ... + 59659660.

It is an arithmetic number, because the mean of its divisors is an integer number (2004280772832).

Almost surely, 2^{21222202112002} is an apocalyptic number.

21222202112002 is a deficient number, since it is larger than the sum of its proper divisors (10846290253310).

21222202112002 is a wasteful number, since it uses less digits than its factorization.

21222202112002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118963193.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 21222202112002 its reverse (20021120222212), we get a palindrome (41243322334214).

The spelling of 21222202112002 in words is "twenty-one trillion, two hundred twenty-two billion, two hundred two million, one hundred twelve thousand, two".