212435252155 has 32 divisors (see below), whose sum is σ = 310992860160. Its totient is φ = 136059315840.

The previous prime is 212435252147. The next prime is 212435252171. The reversal of 212435252155 is 551252534212.

It is not a de Polignac number, because 212435252155 - 2³ = 212435252147 is a prime.

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, 2202444 + ... + 2296873.

It is an arithmetic number, because the mean of its divisors is an integer number (9718526880).

Almost surely, 2^212435252155 is an apocalyptic number.

212435252155 is a deficient number, since it is larger than the sum of its proper divisors (98557608005).

212435252155 is a wasteful number, since it uses less digits than its factorization.

212435252155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499419.

The product of its digits is 120000, while the sum is 37.

Adding to 212435252155 its reverse (551252534212), we get a palindrome (763687786367).

The spelling of 212435252155 in words is "two hundred twelve billion, four hundred thirty-five million, two hundred fifty-two thousand, one hundred fifty-five".