12220122110021 has 16 divisors (see below), whose sum is σ = 14313536106240. Its totient is φ = 10213880526720.

The previous prime is 12220122109931. The next prime is 12220122110041. The reversal of 12220122110021 is 12001122102221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12220122110021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220122110041) 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, 9910241 + ... + 11074886.

It is an arithmetic number, because the mean of its divisors is an integer number (894596006640).

Almost surely, 2^{12220122110021} is an apocalyptic number.

It is an amenable number.

12220122110021 is a deficient number, since it is larger than the sum of its proper divisors (2093413996219).

12220122110021 is a wasteful number, since it uses less digits than its factorization.

12220122110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20987204.

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

Adding to 12220122110021 its reverse (12001122102221), we get a palindrome (24221244212242).

The spelling of 12220122110021 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-two million, one hundred ten thousand, twenty-one".