212202134311 has 4 divisors (see below), whose sum is σ = 212208143824. Its totient is φ = 212196124800.

The previous prime is 212202134281. The next prime is 212202134317. The reversal of 212202134311 is 113431202212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212202134311 - 2¹⁵ = 212202101543 is a prime.

It is a super-2 number, since 2×212202134311² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212202134317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2951475 + ... + 3022516.

It is an arithmetic number, because the mean of its divisors is an integer number (53052035956).

Almost surely, 2^212202134311 is an apocalyptic number.

212202134311 is a deficient number, since it is larger than the sum of its proper divisors (6009513).

212202134311 is an equidigital number, since it uses as much as digits as its factorization.

212202134311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6009512.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 212202134311 its reverse (113431202212), we get a palindrome (325633336523).

The spelling of 212202134311 in words is "two hundred twelve billion, two hundred two million, one hundred thirty-four thousand, three hundred eleven".