212155051055 has 32 divisors (see below), whose sum is σ = 257712814080. Its totient is φ = 167654206720.

The previous prime is 212155051037. The next prime is 212155051067. The reversal of 212155051055 is 550150551212.

It is not a de Polignac number, because 212155051055 - 2⁸ = 212155050799 is a prime.

It is a super-2 number, since 2×212155051055² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 224028092 + ... + 224029038.

It is an arithmetic number, because the mean of its divisors is an integer number (8053525440).

Almost surely, 2^212155051055 is an apocalyptic number.

212155051055 is a deficient number, since it is larger than the sum of its proper divisors (45557763025).

212155051055 is a wasteful number, since it uses less digits than its factorization.

212155051055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2359.

The product of its (nonzero) digits is 12500, while the sum is 32.

The spelling of 212155051055 in words is "two hundred twelve billion, one hundred fifty-five million, fifty-one thousand, fifty-five".