21202011102114 has 24 divisors (see below), whose sum is σ = 45951245793180. Its totient is φ = 7065251638368.

The previous prime is 21202011102113. The next prime is 21202011102121. The reversal of 21202011102114 is 41120111020212.

It can be written as a sum of positive squares in 2 ways, for example, as 16326892829025 + 4875118273089 = 4040655^2 + 2207967^2 .

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 (21202011102113) 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, 173720277 + ... + 173842280.

Almost surely, 2^{21202011102114} is an apocalyptic number.

21202011102114 is an abundant number, since it is smaller than the sum of its proper divisors (24749234691066).

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

21202011102114 is a wasteful number, since it uses less digits than its factorization.

21202011102114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347565954 (or 347565951 counting only the distinct ones).

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

Adding to 21202011102114 its reverse (41120111020212), we get a palindrome (62322122122326).

The spelling of 21202011102114 in words is "twenty-one trillion, two hundred two billion, eleven million, one hundred two thousand, one hundred fourteen".