20221102122012 has 144 divisors (see below), whose sum is σ = 58449653982720. Its totient is φ = 5839125868800.

The previous prime is 20221102121951. The next prime is 20221102122017. The reversal of 20221102122012 is 21022120112202.

It is a happy number.

20221102122012 is a `hidden beast` number, since 20 + 221 + 10 + 212 + 201 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20221102122017) 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, 13783812 + ... + 15180107.

It is an arithmetic number, because the mean of its divisors is an integer number (405900374880).

Almost surely, 2^{20221102122012} is an apocalyptic number.

20221102122012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20221102122012 is an abundant number, since it is smaller than the sum of its proper divisors (38228551860708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20221102122012 is a wasteful number, since it uses less digits than its factorization.

20221102122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28964024 (or 28964019 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20221102122012 its reverse (21022120112202), we get a palindrome (41243222234214).

The spelling of 20221102122012 in words is "twenty trillion, two hundred twenty-one billion, one hundred two million, one hundred twenty-two thousand, twelve".