12201002211021 has 32 divisors (see below), whose sum is σ = 19002377616768. Its totient is φ = 6894286632960.

The previous prime is 12201002210941. The next prime is 12201002211043. The reversal of 12201002211021 is 12011220010221.

It is not a de Polignac number, because 12201002211021 - 2¹¹ = 12201002208973 is a prime.

It is a super-2 number, since 2×12201002211021² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201002211091) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224396211 + ... + 224450576.

It is an arithmetic number, because the mean of its divisors is an integer number (593824300524).

Almost surely, 2^{12201002211021} is an apocalyptic number.

It is an amenable number.

12201002211021 is a deficient number, since it is larger than the sum of its proper divisors (6801375405747).

12201002211021 is a wasteful number, since it uses less digits than its factorization.

12201002211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448846861.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12201002211021 its reverse (12011220010221), we get a palindrome (24212222221242).

The spelling of 12201002211021 in words is "twelve trillion, two hundred one billion, two million, two hundred eleven thousand, twenty-one".