12220210121021 has 16 divisors (see below), whose sum is σ = 14291174160384. Its totient is φ = 10230565678704.

The previous prime is 12220210120969. The next prime is 12220210121057. The reversal of 12220210121021 is 12012101202221.

12220210121021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12220210121021 - 2²² = 12220205926717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220210123021) 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, 9695240 + ... + 10882926.

It is an arithmetic number, because the mean of its divisors is an integer number (893198385024).

Almost surely, 2^{12220210121021} is an apocalyptic number.

It is an amenable number.

12220210121021 is a deficient number, since it is larger than the sum of its proper divisors (2070964039363).

12220210121021 is a wasteful number, since it uses less digits than its factorization.

12220210121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221920.

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

Adding to 12220210121021 its reverse (12012101202221), we get a palindrome (24232311323242).

The spelling of 12220210121021 in words is "twelve trillion, two hundred twenty billion, two hundred ten million, one hundred twenty-one thousand, twenty-one".