51222100994 has 8 divisors (see below), whose sum is σ = 77171624208. Its totient is φ = 25498226260.

The previous prime is 51222100981. The next prime is 51222101003. The reversal of 51222100994 is 49900122215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56411552 + ... + 56412459.

It is an arithmetic number, because the mean of its divisors is an integer number (9646453026).

Almost surely, 2^51222100994 is an apocalyptic number.

51222100994 is a deficient number, since it is larger than the sum of its proper divisors (25949523214).

51222100994 is a wasteful number, since it uses less digits than its factorization.

51222100994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112824240.

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 51222100994 in words is "fifty-one billion, two hundred twenty-two million, one hundred thousand, nine hundred ninety-four".