51031224202 has 64 divisors (see below), whose sum is σ = 89190097920. Its totient is φ = 21449062656.

The previous prime is 51031224161. The next prime is 51031224239. The reversal of 51031224202 is 20242213015.

It is a happy number.

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, 86935353 + ... + 86935939.

It is an arithmetic number, because the mean of its divisors is an integer number (1393595280).

Almost surely, 2^51031224202 is an apocalyptic number.

51031224202 is a deficient number, since it is larger than the sum of its proper divisors (38158873718).

51031224202 is a wasteful number, since it uses less digits than its factorization.

51031224202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1195.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 51031224202 its reverse (20242213015), we get a palindrome (71273437217).

The spelling of 51031224202 in words is "fifty-one billion, thirty-one million, two hundred twenty-four thousand, two hundred two".