157021212370 has 48 divisors (see below), whose sum is σ = 313684862400. Its totient is φ = 56544222240.

The previous prime is 157021212191. The next prime is 157021212391. The reversal of 157021212370 is 73212120751.

It is a super-2 number, since 2×157021212370² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 505320 + ... + 754579.

It is an arithmetic number, because the mean of its divisors is an integer number (6535101300).

Almost surely, 2^157021212370 is an apocalyptic number.

157021212370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157021212370 is a deficient number, since it is larger than the sum of its proper divisors (156663650030).

157021212370 is a wasteful number, since it uses less digits than its factorization.

157021212370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260031 (or 1260020 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 31.

The spelling of 157021212370 in words is "one hundred fifty-seven billion, twenty-one million, two hundred twelve thousand, three hundred seventy".