122428085554 has 4 divisors (see below), whose sum is σ = 183642128334. Its totient is φ = 61214042776.

The previous prime is 122428085503. The next prime is 122428085561. The reversal of 122428085554 is 455580824221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 455580824221 = 17 ⋅26798872013.

It can be written as a sum of positive squares in only one way, i.e., 80047687329 + 42380398225 = 282927^2 + 205865^2 .

It is a super-2 number, since 2×122428085554² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30607021387 + ... + 30607021390.

Almost surely, 2^122428085554 is an apocalyptic number.

122428085554 is a deficient number, since it is larger than the sum of its proper divisors (61214042780).

122428085554 is an equidigital number, since it uses as much as digits as its factorization.

122428085554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61214042779.

The product of its (nonzero) digits is 1024000, while the sum is 46.

The spelling of 122428085554 in words is "one hundred twenty-two billion, four hundred twenty-eight million, eighty-five thousand, five hundred fifty-four".