122571089892 has 30 divisors (see below), whose sum is σ = 320425041398. Its totient is φ = 40857029856.

The previous prime is 122571089881. The next prime is 122571089923. The reversal of 122571089892 is 298980175221.

It can be written as a sum of positive squares in only one way, i.e., 118483277796 + 4087812096 = 344214^2 + 63936^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 189152593 + ... + 189153240.

Almost surely, 2^122571089892 is an apocalyptic number.

122571089892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122571089892 is an abundant number, since it is smaller than the sum of its proper divisors (197853951506).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122571089892 is a wasteful number, since it uses less digits than its factorization.

122571089892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378305849 (or 378305838 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The spelling of 122571089892 in words is "one hundred twenty-two billion, five hundred seventy-one million, eighty-nine thousand, eight hundred ninety-two".