2111322310021 has 16 divisors (see below), whose sum is σ = 2193719205888. Its totient is φ = 2029832362800.

The previous prime is 2111322310007. The next prime is 2111322310037. The reversal of 2111322310021 is 1200132231112.

It is a cyclic number.

It is not a de Polignac number, because 2111322310021 - 2⁵ = 2111322309989 is a prime.

It is a super-3 number, since 3×2111322310021³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111322310001) 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, 9116226 + ... + 9344956.

It is an arithmetic number, because the mean of its divisors is an integer number (137107450368).

Almost surely, 2^{2111322310021} is an apocalyptic number.

It is an amenable number.

2111322310021 is a deficient number, since it is larger than the sum of its proper divisors (82396895867).

2111322310021 is a wasteful number, since it uses less digits than its factorization.

2111322310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230712.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2111322310021 its reverse (1200132231112), we get a palindrome (3311454541133).

The spelling of 2111322310021 in words is "two trillion, one hundred eleven billion, three hundred twenty-two million, three hundred ten thousand, twenty-one".