51015017012212 has 12 divisors (see below), whose sum is σ = 97392305205216. Its totient is φ = 23188644096440.

The previous prime is 51015017012207. The next prime is 51015017012213. The reversal of 51015017012212 is 21221071051015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51015017012213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579716102368 + ... + 579716102455.

It is an arithmetic number, because the mean of its divisors is an integer number (8116025433768).

Almost surely, 2^{51015017012212} is an apocalyptic number.

It is an amenable number.

51015017012212 is a deficient number, since it is larger than the sum of its proper divisors (46377288193004).

51015017012212 is a wasteful number, since it uses less digits than its factorization.

51015017012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1159432204838 (or 1159432204836 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 28.

Adding to 51015017012212 its reverse (21221071051015), we get a palindrome (72236088063227).

The spelling of 51015017012212 in words is "fifty-one trillion, fifteen billion, seventeen million, twelve thousand, two hundred twelve".