122240622281 has 4 divisors (see below), whose sum is σ = 122861133252. Its totient is φ = 121620111312.

The previous prime is 122240622253. The next prime is 122240622319. The reversal of 122240622281 is 182226042221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71671856656 + 50568765625 = 267716^2 + 224875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122240622281 is a prime.

It is a super-2 number, since 2×122240622281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122240622211) 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, 310255190 + ... + 310255583.

It is an arithmetic number, because the mean of its divisors is an integer number (30715283313).

Almost surely, 2^122240622281 is an apocalyptic number.

It is an amenable number.

122240622281 is a deficient number, since it is larger than the sum of its proper divisors (620510971).

122240622281 is an equidigital number, since it uses as much as digits as its factorization.

122240622281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620510970.

The product of its (nonzero) digits is 12288, while the sum is 32.

The spelling of 122240622281 in words is "one hundred twenty-two billion, two hundred forty million, six hundred twenty-two thousand, two hundred eighty-one".