20221211231123 has 48 divisors (see below), whose sum is σ = 23850655920000. Its totient is φ = 17092806312960.

The previous prime is 20221211231107. The next prime is 20221211231203. The reversal of 20221211231123 is 32113211212202.

It is not a de Polignac number, because 20221211231123 - 2⁴ = 20221211231107 is a prime.

It is a super-2 number, since 2×20221211231123² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20221211231323) 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, 634892903 + ... + 634924751.

It is an arithmetic number, because the mean of its divisors is an integer number (496888665000).

Almost surely, 2^{20221211231123} is an apocalyptic number.

20221211231123 is a deficient number, since it is larger than the sum of its proper divisors (3629444688877).

20221211231123 is a wasteful number, since it uses less digits than its factorization.

20221211231123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32620 (or 32613 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 20221211231123 its reverse (32113211212202), we get a palindrome (52334422443325).

The spelling of 20221211231123 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, two hundred thirty-one thousand, one hundred twenty-three".