2121111110986 has 64 divisors (see below), whose sum is σ = 3958489497600. Its totient is φ = 832209790464.

The previous prime is 2121111110983. The next prime is 2121111111011. The reversal of 2121111110986 is 6890111111212.

It is a super-2 number, since 2×2121111110986² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121111110983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 86151 + ... + 2061466.

It is an arithmetic number, because the mean of its divisors is an integer number (61851398400).

Almost surely, 2^{2121111110986} is an apocalyptic number.

2121111110986 is a deficient number, since it is larger than the sum of its proper divisors (1837378386614).

2121111110986 is a wasteful number, since it uses less digits than its factorization.

2121111110986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147771.

The product of its (nonzero) digits is 1728, while the sum is 34.

The spelling of 2121111110986 in words is "two trillion, one hundred twenty-one billion, one hundred eleven million, one hundred ten thousand, nine hundred eighty-six".