21002202001210 has 64 divisors (see below), whose sum is σ = 40306985268480. Its totient is φ = 7851642127360.

The previous prime is 21002202001199. The next prime is 21002202001387. The reversal of 21002202001210 is 1210020220012.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28566420 + ... + 29292400.

It is an arithmetic number, because the mean of its divisors is an integer number (629796644820).

Almost surely, 2^{21002202001210} is an apocalyptic number.

21002202001210 is a deficient number, since it is larger than the sum of its proper divisors (19304783267270).

21002202001210 is a wasteful number, since it uses less digits than its factorization.

21002202001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727191.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 21002202001210 its reverse (1210020220012), we get a palindrome (22212222221222).

The spelling of 21002202001210 in words is "twenty-one trillion, two billion, two hundred two million, one thousand, two hundred ten".