21012210222010 has 32 divisors (see below), whose sum is σ = 43226259747840. Its totient is φ = 7203996099072.

The previous prime is 21012210222001. The next prime is 21012210222041. The reversal of 21012210222010 is 1022201221012.

It is a happy number.

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, 1281495 + ... + 6608074.

It is an arithmetic number, because the mean of its divisors is an integer number (1350820617120).

Almost surely, 2^{21012210222010} is an apocalyptic number.

21012210222010 is an abundant number, since it is smaller than the sum of its proper divisors (22214049525830).

21012210222010 is a wasteful number, since it uses less digits than its factorization.

21012210222010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927630.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21012210222010 its reverse (1022201221012), we get a palindrome (22034411443022).

The spelling of 21012210222010 in words is "twenty-one trillion, twelve billion, two hundred ten million, two hundred twenty-two thousand, ten".