122157347762 has 6 divisors (see below), whose sum is σ = 183236763069. Its totient is φ = 61078426740.

The previous prime is 122157347749. The next prime is 122157347771. The reversal of 122157347762 is 267743751221.

It can be written as a sum of positive squares in 2 ways, for example, as 83202825601 + 38954522161 = 288449^2 + 197369^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=247141.

It is a super-2 number, since 2×122157347762² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 370712 + ... + 617852.

Almost surely, 2^122157347762 is an apocalyptic number.

122157347762 is a deficient number, since it is larger than the sum of its proper divisors (61079415307).

122157347762 is an frugal number, since it uses more digits than its factorization.

122157347762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494284 (or 247143 counting only the distinct ones).

The product of its digits is 987840, while the sum is 47.

The spelling of 122157347762 in words is "one hundred twenty-two billion, one hundred fifty-seven million, three hundred forty-seven thousand, seven hundred sixty-two".