20022212111 has 48 divisors (see below), whose sum is σ = 24103070208. Its totient is φ = 16430169600.

The previous prime is 20022212101. The next prime is 20022212113. The reversal of 20022212111 is 11121222002.

It is not a de Polignac number, because 20022212111 - 2²² = 20018017807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20022212113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24687896 + ... + 24688706.

It is an arithmetic number, because the mean of its divisors is an integer number (502147296).

Almost surely, 2^20022212111 is an apocalyptic number.

20022212111 is a deficient number, since it is larger than the sum of its proper divisors (4080858097).

20022212111 is a wasteful number, since it uses less digits than its factorization.

20022212111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20022212111 its reverse (11121222002), we get a palindrome (31143434113).

The spelling of 20022212111 in words is "twenty billion, twenty-two million, two hundred twelve thousand, one hundred eleven".