21120010201210 has 32 divisors (see below), whose sum is σ = 38435392396800. Its totient is φ = 8354934369792.

The previous prime is 21120010201109. The next prime is 21120010201229. The reversal of 21120010201210 is 1210201002112.

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, 6424674 + ... + 9138733.

It is an arithmetic number, because the mean of its divisors is an integer number (1201106012400).

Almost surely, 2^{21120010201210} is an apocalyptic number.

21120010201210 is a deficient number, since it is larger than the sum of its proper divisors (17315382195590).

21120010201210 is a wasteful number, since it uses less digits than its factorization.

21120010201210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15564910.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21120010201210 its reverse (1210201002112), we get a palindrome (22330211203322).

The spelling of 21120010201210 in words is "twenty-one trillion, one hundred twenty billion, ten million, two hundred one thousand, two hundred ten".