212146422152 has 64 divisors (see below), whose sum is σ = 455513210880. Its totient is φ = 90737381952.

The previous prime is 212146422133. The next prime is 212146422179. The reversal of 212146422152 is 251224641212.

It is a super-2 number, since 2×212146422152² (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 15 ways as a sum of consecutive naturals, for example, 98993993 + ... + 98996135.

It is an arithmetic number, because the mean of its divisors is an integer number (7117393920).

Almost surely, 2^212146422152 is an apocalyptic number.

It is an amenable number.

212146422152 is an abundant number, since it is smaller than the sum of its proper divisors (243366788728).

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

212146422152 is a wasteful number, since it uses less digits than its factorization.

212146422152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4882 (or 4878 counting only the distinct ones).

The product of its digits is 15360, while the sum is 32.

The spelling of 212146422152 in words is "two hundred twelve billion, one hundred forty-six million, four hundred twenty-two thousand, one hundred fifty-two".