212203406245311 has 112 divisors (see below), whose sum is σ = 348317586332352. Its totient is φ = 128437436160000.

The previous prime is 212203406245307. The next prime is 212203406245379. The reversal of 212203406245311 is 113542604302212.

It is a happy number.

212203406245311 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 0 + 3 + 406 + 245 + 3 + 1 + 1 = 666.

It is not a de Polignac number, because 212203406245311 - 2² = 212203406245307 is a prime.

It is a super-2 number, since 2×212203406245311² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212203406245511) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 143799631 + ... + 145267823.

It is an arithmetic number, because the mean of its divisors is an integer number (3109978449396).

Almost surely, 2^{212203406245311} is an apocalyptic number.

212203406245311 is a deficient number, since it is larger than the sum of its proper divisors (136114180087041).

212203406245311 is a wasteful number, since it uses less digits than its factorization.

212203406245311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1468476 (or 1468461 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 212203406245311 in words is "two hundred twelve trillion, two hundred three billion, four hundred six million, two hundred forty-five thousand, three hundred eleven".