21120111222202 has 8 divisors (see below), whose sum is σ = 31680447173856. Its totient is φ = 10559962164252.

The previous prime is 21120111222191. The next prime is 21120111222233. The reversal of 21120111222202 is 20222211102112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 21120111222202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46440568 + ... + 46893139.

It is an arithmetic number, because the mean of its divisors is an integer number (3960055896732).

Almost surely, 2^{21120111222202} is an apocalyptic number.

21120111222202 is a deficient number, since it is larger than the sum of its proper divisors (10560335951654).

21120111222202 is a wasteful number, since it uses less digits than its factorization.

21120111222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93446852.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 21120111222202 its reverse (20222211102112), we get a palindrome (41342322324314).

The spelling of 21120111222202 in words is "twenty-one trillion, one hundred twenty billion, one hundred eleven million, two hundred twenty-two thousand, two hundred two".