122212220151 has 8 divisors (see below), whose sum is σ = 186228145024. Its totient is φ = 69835554360.

The previous prime is 122212220131. The next prime is 122212220153. The reversal of 122212220151 is 151022212221.

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

It is not a de Polignac number, because 122212220151 - 2¹⁹ = 122211695863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5819629531 = 122212220151 / (1 + 2 + 2 + 2 + 1 + 2 + 2 + 2 + 0 + 1 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122212220153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2909814745 + ... + 2909814786.

It is an arithmetic number, because the mean of its divisors is an integer number (23278518128).

Almost surely, 2^122212220151 is an apocalyptic number.

122212220151 is a deficient number, since it is larger than the sum of its proper divisors (64015924873).

122212220151 is an equidigital number, since it uses as much as digits as its factorization.

122212220151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5819629541.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 122212220151 its reverse (151022212221), we get a palindrome (273234432372).

The spelling of 122212220151 in words is "one hundred twenty-two billion, two hundred twelve million, two hundred twenty thousand, one hundred fifty-one".