12151776274 has 16 divisors (see below), whose sum is σ = 20067157440. Its totient is φ = 5472858960.

The previous prime is 12151776251. The next prime is 12151776283. The reversal of 12151776274 is 47267715121.

It is a super-2 number, since 2×12151776274² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12151776274.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2531334 + ... + 2536129.

It is an arithmetic number, because the mean of its divisors is an integer number (1254197340).

Almost surely, 2^12151776274 is an apocalyptic number.

12151776274 is a deficient number, since it is larger than the sum of its proper divisors (7915381166).

12151776274 is a wasteful number, since it uses less digits than its factorization.

12151776274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5067585.

The product of its digits is 164640, while the sum is 43.

It can be divided in two parts, 121517 and 76274, that added together give a palindrome (197791).

The spelling of 12151776274 in words is "twelve billion, one hundred fifty-one million, seven hundred seventy-six thousand, two hundred seventy-four".