20221220101111 has 16 divisors (see below), whose sum is σ = 21829058048448. Its totient is φ = 18683445088000.

The previous prime is 20221220101109. The next prime is 20221220101129. The reversal of 20221220101111 is 11110102212202.

It is a cyclic number.

It is not a de Polignac number, because 20221220101111 - 2¹ = 20221220101109 is a prime.

It is a super-2 number, since 2×20221220101111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221220101151) 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, 106060696 + ... + 106251181.

It is an arithmetic number, because the mean of its divisors is an integer number (1364316128028).

Almost surely, 2^{20221220101111} is an apocalyptic number.

20221220101111 is a deficient number, since it is larger than the sum of its proper divisors (1607837947337).

20221220101111 is a wasteful number, since it uses less digits than its factorization.

20221220101111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212312042.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20221220101111 its reverse (11110102212202), we get a palindrome (31331322313313).

The spelling of 20221220101111 in words is "twenty trillion, two hundred twenty-one billion, two hundred twenty million, one hundred one thousand, one hundred eleven".