20622615121 has 8 divisors (see below), whose sum is σ = 20942290080. Its totient is φ = 20303944992.

The previous prime is 20622615073. The next prime is 20622615127. The reversal of 20622615121 is 12151622602.

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

It is a cyclic number.

It is not a de Polignac number, because 20622615121 - 2¹⁹ = 20622090833 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20622615121.

It is not an unprimeable number, because it can be changed into a prime (20622615127) 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, 209791 + ... + 291988.

It is an arithmetic number, because the mean of its divisors is an integer number (2617786260).

Almost surely, 2^20622615121 is an apocalyptic number.

It is an amenable number.

20622615121 is a deficient number, since it is larger than the sum of its proper divisors (319674959).

20622615121 is an equidigital number, since it uses as much as digits as its factorization.

20622615121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502415.

The product of its (nonzero) digits is 2880, while the sum is 28.

The spelling of 20622615121 in words is "twenty billion, six hundred twenty-two million, six hundred fifteen thousand, one hundred twenty-one".