111010022021021 has 32 divisors (see below), whose sum is σ = 119149714492416. Its totient is φ = 103232534400000.

The previous prime is 111010022020943. The next prime is 111010022021023. The reversal of 111010022021021 is 120120220010111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111010022021021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111010022020987 and 111010022021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010022021023) 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, 45259826 + ... + 47649468.

It is an arithmetic number, because the mean of its divisors is an integer number (3723428577888).

Almost surely, 2^{111010022021021} is an apocalyptic number.

It is an amenable number.

111010022021021 is a deficient number, since it is larger than the sum of its proper divisors (8139692471395).

111010022021021 is a wasteful number, since it uses less digits than its factorization.

111010022021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390213.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 111010022021021 its reverse (120120220010111), we get a palindrome (231130242031132).

The spelling of 111010022021021 in words is "one hundred eleven trillion, ten billion, twenty-two million, twenty-one thousand, twenty-one".