21113210222202 has 16 divisors (see below), whose sum is σ = 48258766222272. Its totient is φ = 6032345777760.

The previous prime is 21113210222197. The next prime is 21113210222249. The reversal of 21113210222202 is 20222201231112.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251347740699 + ... + 251347740782.

It is an arithmetic number, because the mean of its divisors is an integer number (3016172888892).

Almost surely, 2^{21113210222202} is an apocalyptic number.

21113210222202 is an abundant number, since it is smaller than the sum of its proper divisors (27145556000070).

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

21113210222202 is a wasteful number, since it uses less digits than its factorization.

21113210222202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502695481493.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21113210222202 its reverse (20222201231112), we get a palindrome (41335411453314).

The spelling of 21113210222202 in words is "twenty-one trillion, one hundred thirteen billion, two hundred ten million, two hundred twenty-two thousand, two hundred two".