21002310010202 has 16 divisors (see below), whose sum is σ = 31623697207872. Its totient is φ = 10461078737280.

The previous prime is 21002310010189. The next prime is 21002310010243. The reversal of 21002310010202 is 20201001320012.

It is a happy number.

It is a super-2 number, since 2×21002310010202² (a number of 27 digits) contains 22 as substring.

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, 43359818 + ... + 43841514.

It is an arithmetic number, because the mean of its divisors is an integer number (1976481075492).

Almost surely, 2^{21002310010202} is an apocalyptic number.

21002310010202 is a deficient number, since it is larger than the sum of its proper divisors (10621387197670).

21002310010202 is a wasteful number, since it uses less digits than its factorization.

21002310010202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564853.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21002310010202 its reverse (20201001320012), we get a palindrome (41203311330214).

The spelling of 21002310010202 in words is "twenty-one trillion, two billion, three hundred ten million, ten thousand, two hundred two".