210115511012 has 48 divisors (see below), whose sum is σ = 408914194752. Its totient is φ = 93655486080.

The previous prime is 210115511009. The next prime is 210115511029.

210115511012 is nontrivially palindromic in base 10.

210115511012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4578203 + ... + 4623869.

It is an arithmetic number, because the mean of its divisors is an integer number (8519045724).

Almost surely, 2^210115511012 is an apocalyptic number.

210115511012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210115511012 is a deficient number, since it is larger than the sum of its proper divisors (198798683740).

210115511012 is a wasteful number, since it uses less digits than its factorization.

210115511012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47708 (or 47706 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 20.

It can be divided in two parts, 210115 and 511012, that added together give a palindrome (721127).

The spelling of 210115511012 in words is "two hundred ten billion, one hundred fifteen million, five hundred eleven thousand, twelve".