21202101011202 has 32 divisors (see below), whose sum is σ = 42511759517760. Its totient is φ = 7049443910400.

The previous prime is 21202101011173. The next prime is 21202101011243. The reversal of 21202101011202 is 20211010120212.

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, 26882577 + ... + 27660027.

It is an arithmetic number, because the mean of its divisors is an integer number (1328492484930).

Almost surely, 2^{21202101011202} is an apocalyptic number.

21202101011202 is an abundant number, since it is smaller than the sum of its proper divisors (21309658506558).

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

21202101011202 is a wasteful number, since it uses less digits than its factorization.

21202101011202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788978.

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

Adding to 21202101011202 its reverse (20211010120212), we get a palindrome (41413111131414).

The spelling of 21202101011202 in words is "twenty-one trillion, two hundred two billion, one hundred one million, eleven thousand, two hundred two".