2120121011986 has 16 divisors (see below), whose sum is σ = 3186245210400. Its totient is φ = 1058041202400.

The previous prime is 2120121011927. The next prime is 2120121011993. The reversal of 2120121011986 is 6891101210212.

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, 1724245 + ... + 2685751.

It is an arithmetic number, because the mean of its divisors is an integer number (199140325650).

Almost surely, 2^{2120121011986} is an apocalyptic number.

2120121011986 is a deficient number, since it is larger than the sum of its proper divisors (1066124198414).

2120121011986 is a wasteful number, since it uses less digits than its factorization.

2120121011986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 963609.

The product of its (nonzero) digits is 3456, while the sum is 34.

The spelling of 2120121011986 in words is "two trillion, one hundred twenty billion, one hundred twenty-one million, eleven thousand, nine hundred eighty-six".