1212551510131 has 16 divisors (see below), whose sum is σ = 1357641432000. Its totient is φ = 1075251881088.

The previous prime is 1212551510117. The next prime is 1212551510141. The reversal of 1212551510131 is 1310151552121.

It is not a de Polignac number, because 1212551510131 - 2⁵ = 1212551510099 is a prime.

It is a super-2 number, since 2×1212551510131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1212551510131.

It is not an unprimeable number, because it can be changed into a prime (1212551510141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8006176 + ... + 8156221.

It is an arithmetic number, because the mean of its divisors is an integer number (84852589500).

Almost surely, 2^{1212551510131} is an apocalyptic number.

1212551510131 is a deficient number, since it is larger than the sum of its proper divisors (145089921869).

1212551510131 is a wasteful number, since it uses less digits than its factorization.

1212551510131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16162638.

The product of its (nonzero) digits is 1500, while the sum is 28.

The spelling of 1212551510131 in words is "one trillion, two hundred twelve billion, five hundred fifty-one million, five hundred ten thousand, one hundred thirty-one".