12220001012021 has 72 divisors (see below), whose sum is σ = 14385231204960. Its totient is φ = 10366404269760.

The previous prime is 12220001012003. The next prime is 12220001012071. The reversal of 12220001012021 is 12021010002221.

It is not a de Polignac number, because 12220001012021 - 2³⁸ = 11945123105077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12220001011987 and 12220001012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220001012071) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2804680175 + ... + 2804684531.

Almost surely, 2^{12220001012021} is an apocalyptic number.

12220001012021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12220001012021 is a deficient number, since it is larger than the sum of its proper divisors (2165230192939).

12220001012021 is a wasteful number, since it uses less digits than its factorization.

12220001012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5487 (or 5453 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12220001012021 its reverse (12021010002221), we get a palindrome (24241011014242).

The spelling of 12220001012021 in words is "twelve trillion, two hundred twenty billion, one million, twelve thousand, twenty-one".