20120022022111 has 16 divisors (see below), whose sum is σ = 23240383189920. Its totient is φ = 17214885550080.

The previous prime is 20120022022097. The next prime is 20120022022127. The reversal of 20120022022111 is 11122022002102.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20120022022111 - 2¹⁵ = 20120021989343 is a prime.

It is a super-2 number, since 2×20120022022111² (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 (20120022022181) 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, 51356455 + ... + 51746743.

It is an arithmetic number, because the mean of its divisors is an integer number (1452523949370).

Almost surely, 2^{20120022022111} is an apocalyptic number.

20120022022111 is a deficient number, since it is larger than the sum of its proper divisors (3120361167809).

20120022022111 is a wasteful number, since it uses less digits than its factorization.

20120022022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665994.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20120022022111 its reverse (11122022002102), we get a palindrome (31242044024213).

The spelling of 20120022022111 in words is "twenty trillion, one hundred twenty billion, twenty-two million, twenty-two thousand, one hundred eleven".