2154120214512 has 80 divisors (see below), whose sum is σ = 6362739544320. Its totient is φ = 615176848896.

The previous prime is 2154120214487. The next prime is 2154120214531.

2154120214512 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 2154120214512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 765462 + ... + 2212277.

It is an arithmetic number, because the mean of its divisors is an integer number (79534244304).

Almost surely, 2^{2154120214512} is an apocalyptic number.

It is an amenable number.

2154120214512 is an abundant number, since it is smaller than the sum of its proper divisors (4208619329808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2154120214512 is a wasteful number, since it uses less digits than its factorization.

2154120214512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2979910 (or 2979904 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

It can be divided in two parts, 2154120 and 214512, that added together give a palindrome (2368632).

The spelling of 2154120214512 in words is "two trillion, one hundred fifty-four billion, one hundred twenty million, two hundred fourteen thousand, five hundred twelve".