10022220001221 has 16 divisors (see below), whose sum is σ = 14220117072000. Its totient is φ = 6256851499008.

The previous prime is 10022220001127. The next prime is 10022220001223. The reversal of 10022220001221 is 12210002222001.

It is not a de Polignac number, because 10022220001221 - 2³⁴ = 10005040132037 is a prime.

It is a super-2 number, since 2×10022220001221² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10022220001221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10022220001223) 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, 493743916 + ... + 493764213.

It is an arithmetic number, because the mean of its divisors is an integer number (888757317000).

Almost surely, 2^{10022220001221} is an apocalyptic number.

It is an amenable number.

10022220001221 is a deficient number, since it is larger than the sum of its proper divisors (4197897070779).

10022220001221 is a wasteful number, since it uses less digits than its factorization.

10022220001221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987508348.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 10022220001221 its reverse (12210002222001), we get a palindrome (22232222223222).

The spelling of 10022220001221 in words is "ten trillion, twenty-two billion, two hundred twenty million, one thousand, two hundred twenty-one".