20221002111 has 16 divisors (see below), whose sum is σ = 28528957440. Its totient is φ = 12704287680.

The previous prime is 20221002107. The next prime is 20221002143. The reversal of 20221002111 is 11120012202.

It is not a de Polignac number, because 20221002111 - 2² = 20221002107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221002181) 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, 917790 + ... + 939563.

It is an arithmetic number, because the mean of its divisors is an integer number (1783059840).

Almost surely, 2^20221002111 is an apocalyptic number.

20221002111 is a deficient number, since it is larger than the sum of its proper divisors (8307955329).

20221002111 is a wasteful number, since it uses less digits than its factorization.

20221002111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1857566.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20221002111 its reverse (11120012202), we get a palindrome (31341014313).

The spelling of 20221002111 in words is "twenty billion, two hundred twenty-one million, two thousand, one hundred eleven".