212050040345 has 64 divisors (see below), whose sum is σ = 316728921600. Its totient is φ = 133897728000.

The previous prime is 212050040291. The next prime is 212050040357. The reversal of 212050040345 is 543040050212.

It is a happy number.

It is not a de Polignac number, because 212050040345 - 2⁸ = 212050040089 is a prime.

It is a super-2 number, since 2×212050040345² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23685620 + ... + 23694570.

It is an arithmetic number, because the mean of its divisors is an integer number (4948889400).

Almost surely, 2^212050040345 is an apocalyptic number.

It is an amenable number.

212050040345 is a deficient number, since it is larger than the sum of its proper divisors (104678881255).

212050040345 is a wasteful number, since it uses less digits than its factorization.

212050040345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10946.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 212050040345 its reverse (543040050212), we get a palindrome (755090090557).

The spelling of 212050040345 in words is "two hundred twelve billion, fifty million, forty thousand, three hundred forty-five".