20220012111111 has 32 divisors (see below), whose sum is σ = 27179015904768. Its totient is φ = 13370875943040.

The previous prime is 20220012111071. The next prime is 20220012111121. The reversal of 20220012111111 is 11111121002202.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20220012111111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20220012111121) 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, 570572685 + ... + 570608121.

It is an arithmetic number, because the mean of its divisors is an integer number (849344247024).

Almost surely, 2^{20220012111111} is an apocalyptic number.

20220012111111 is a deficient number, since it is larger than the sum of its proper divisors (6959003793657).

20220012111111 is a wasteful number, since it uses less digits than its factorization.

20220012111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37991.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 20220012111111 its reverse (11111121002202), we get a palindrome (31331133113313).

The spelling of 20220012111111 in words is "twenty trillion, two hundred twenty billion, twelve million, one hundred eleven thousand, one hundred eleven".