21100210201002 has 32 divisors (see below), whose sum is σ = 43264391436288. Its totient is φ = 6856700394096.

The previous prime is 21100210200997. The next prime is 21100210201033. The reversal of 21100210201002 is 20010201200112.

It is a super-2 number, since 2×21100210201002² (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 15 ways as a sum of consecutive naturals, for example, 78052218 + ... + 78322085.

It is an arithmetic number, because the mean of its divisors is an integer number (1352012232384).

Almost surely, 2^{21100210201002} is an apocalyptic number.

21100210201002 is an abundant number, since it is smaller than the sum of its proper divisors (22164181235286).

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

21100210201002 is a wasteful number, since it uses less digits than its factorization.

21100210201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156374874.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21100210201002 its reverse (20010201200112), we get a palindrome (41110411401114).

The spelling of 21100210201002 in words is "twenty-one trillion, one hundred billion, two hundred ten million, two hundred one thousand, two".