10122200211221 has 16 divisors (see below), whose sum is σ = 11899963998720. Its totient is φ = 8429141051520.

The previous prime is 10122200211217. The next prime is 10122200211223. The reversal of 10122200211221 is 12211200222101.

It is not a de Polignac number, because 10122200211221 - 2² = 10122200211217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10122200211221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10122200211223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73715906 + ... + 73853091.

It is an arithmetic number, because the mean of its divisors is an integer number (743747749920).

Almost surely, 2^{10122200211221} is an apocalyptic number.

It is an amenable number.

10122200211221 is a deficient number, since it is larger than the sum of its proper divisors (1777763787499).

10122200211221 is a wasteful number, since it uses less digits than its factorization.

10122200211221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147569284.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10122200211221 its reverse (12211200222101), we get a palindrome (22333400433322).

The spelling of 10122200211221 in words is "ten trillion, one hundred twenty-two billion, two hundred million, two hundred eleven thousand, two hundred twenty-one".