2111312014021 has 16 divisors (see below), whose sum is σ = 2460370169088. Its totient is φ = 1774305187200.

The previous prime is 2111312014003. The next prime is 2111312014027. The reversal of 2111312014021 is 1204102131112.

It is not a de Polignac number, because 2111312014021 - 2¹⁵ = 2111311981253 is a prime.

It is a super-2 number, since 2×2111312014021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2111312014021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111312014027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7816600 + ... + 8082193.

It is an arithmetic number, because the mean of its divisors is an integer number (153773135568).

Almost surely, 2^{2111312014021} is an apocalyptic number.

It is an amenable number.

2111312014021 is a deficient number, since it is larger than the sum of its proper divisors (349058155067).

2111312014021 is a wasteful number, since it uses less digits than its factorization.

2111312014021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15899172.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2111312014021 its reverse (1204102131112), we get a palindrome (3315414145133).

The spelling of 2111312014021 in words is "two trillion, one hundred eleven billion, three hundred twelve million, fourteen thousand, twenty-one".