212232164154 has 32 divisors (see below), whose sum is σ = 443384337024. Its totient is φ = 67597178880.

The previous prime is 212232164149. The next prime is 212232164161. The reversal of 212232164154 is 451461232212.

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, 675367 + ... + 938394.

It is an arithmetic number, because the mean of its divisors is an integer number (13855760532).

Almost surely, 2^212232164154 is an apocalyptic number.

212232164154 is an abundant number, since it is smaller than the sum of its proper divisors (231152172870).

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

212232164154 is a wasteful number, since it uses less digits than its factorization.

212232164154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1614742.

The product of its digits is 23040, while the sum is 33.

Adding to 212232164154 its reverse (451461232212), we get a palindrome (663693396366).

The spelling of 212232164154 in words is "two hundred twelve billion, two hundred thirty-two million, one hundred sixty-four thousand, one hundred fifty-four".