12220210020021 has 4 divisors (see below), whose sum is σ = 16293613360032. Its totient is φ = 8146806680012.

The previous prime is 12220210019987. The next prime is 12220210020023. The reversal of 12220210020021 is 12002001202221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12220210020021 - 2¹⁷ = 12220209888949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220210020023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036701670001 + ... + 2036701670006.

It is an arithmetic number, because the mean of its divisors is an integer number (4073403340008).

Almost surely, 2^{12220210020021} is an apocalyptic number.

It is an amenable number.

12220210020021 is a deficient number, since it is larger than the sum of its proper divisors (4073403340011).

12220210020021 is an equidigital number, since it uses as much as digits as its factorization.

12220210020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073403340010.

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

Adding to 12220210020021 its reverse (12002001202221), we get a palindrome (24222211222242).

The spelling of 12220210020021 in words is "twelve trillion, two hundred twenty billion, two hundred ten million, twenty thousand, twenty-one".