212133206855 has 32 divisors (see below), whose sum is σ = 272207452608. Its totient is φ = 158451379200.

The previous prime is 212133206851. The next prime is 212133206903. The reversal of 212133206855 is 558602331212.

It is not a de Polignac number, because 212133206855 - 2² = 212133206851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212133206851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233444 + ... + 691926.

It is an arithmetic number, because the mean of its divisors is an integer number (8506482894).

Almost surely, 2^212133206855 is an apocalyptic number.

212133206855 is a deficient number, since it is larger than the sum of its proper divisors (60074245753).

212133206855 is a wasteful number, since it uses less digits than its factorization.

212133206855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458627.

The product of its (nonzero) digits is 86400, while the sum is 38.

The spelling of 212133206855 in words is "two hundred twelve billion, one hundred thirty-three million, two hundred six thousand, eight hundred fifty-five".