20022022111 has 16 divisors (see below), whose sum is σ = 25437411328. Its totient is φ = 15330578400.

The previous prime is 20022022109. The next prime is 20022022127. The reversal of 20022022111 is 11122022002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20022022111 - 2¹ = 20022022109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 20022022091 and 20022022100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022022171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3545925 + ... + 3551566.

It is an arithmetic number, because the mean of its divisors is an integer number (1589838208).

Almost surely, 2^20022022111 is an apocalyptic number.

20022022111 is a deficient number, since it is larger than the sum of its proper divisors (5415389217).

20022022111 is a wasteful number, since it uses less digits than its factorization.

20022022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7097542.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20022022111 its reverse (11122022002), we get a palindrome (31144044113).

The spelling of 20022022111 in words is "twenty billion, twenty-two million, twenty-two thousand, one hundred eleven".