2151354440012 has 12 divisors (see below), whose sum is σ = 3766347286800. Its totient is φ = 1075255215216.

The previous prime is 2151354440003. The next prime is 2151354440023. The reversal of 2151354440012 is 2100444531512.

It is a super-2 number, since 2×2151354440012² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105489728 + ... + 105510119.

It is an arithmetic number, because the mean of its divisors is an integer number (313862273900).

Almost surely, 2^{2151354440012} is an apocalyptic number.

It is an amenable number.

2151354440012 is a deficient number, since it is larger than the sum of its proper divisors (1614992846788).

2151354440012 is a wasteful number, since it uses less digits than its factorization.

2151354440012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211002400 (or 211002398 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 2151354440012 its reverse (2100444531512), we get a palindrome (4251798971524).

The spelling of 2151354440012 in words is "two trillion, one hundred fifty-one billion, three hundred fifty-four million, four hundred forty thousand, twelve".