12220002120021 has 8 divisors (see below), whose sum is σ = 16855175338080. Its totient is φ = 7865748490992.

The previous prime is 12220002119987. The next prime is 12220002120031. The reversal of 12220002120021 is 12002120002221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12220002120021 - 2⁷ = 12220002119893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220002120031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70229897155 + ... + 70229897328.

It is an arithmetic number, because the mean of its divisors is an integer number (2106896917260).

Almost surely, 2^{12220002120021} is an apocalyptic number.

It is an amenable number.

12220002120021 is a deficient number, since it is larger than the sum of its proper divisors (4635173218059).

12220002120021 is a wasteful number, since it uses less digits than its factorization.

12220002120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140459794515.

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

Adding to 12220002120021 its reverse (12002120002221), we get a palindrome (24222122122242).

The spelling of 12220002120021 in words is "twelve trillion, two hundred twenty billion, two million, one hundred twenty thousand, twenty-one".