212466051 has 64 divisors (see below), whose sum is σ = 385689600. Its totient is φ = 112831488.

The previous prime is 212466049. The next prime is 212466061. The reversal of 212466051 is 150664212.

212466051 is a `hidden beast` number, since 2 + 12 + 46 + 605 + 1 = 666.

It is not a de Polignac number, because 212466051 - 2¹ = 212466049 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (212466041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 285586 + ... + 286328.

It is an arithmetic number, because the mean of its divisors is an integer number (6026400).

Almost surely, 2^212466051 is an apocalyptic number.

212466051 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212466051 is a deficient number, since it is larger than the sum of its proper divisors (173223549).

212466051 is a wasteful number, since it uses less digits than its factorization.

212466051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865 (or 859 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 212466051 is about 14576.2152495084. The cubic root of 212466051 is about 596.7098157921.

The spelling of 212466051 in words is "two hundred twelve million, four hundred sixty-six thousand, fifty-one".