20221211022120 has 160 divisors (see below), whose sum is σ = 68638666246920. Its totient is φ = 5338933516800.

The previous prime is 20221211022119. The next prime is 20221211022127. The reversal of 20221211022120 is 2122011212202.

It is a happy number.

20221211022120 is a `hidden beast` number, since 20 + 221 + 211 + 0 + 2 + 212 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 19403514023364 + 817696998756 = 4404942^2 + 904266^2 .

It is a super-2 number, since 2×20221211022120² (a number of 27 digits) contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 20221211022093 and 20221211022102.

It is not an unprimeable number, because it can be changed into a prime (20221211022127) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30569367 + ... + 31223846.

Almost surely, 2^{20221211022120} is an apocalyptic number.

20221211022120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20221211022120 is an abundant number, since it is smaller than the sum of its proper divisors (48417455224800).

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

20221211022120 is a wasteful number, since it uses less digits than its factorization.

20221211022120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61793337 (or 61793324 counting only the distinct ones).

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

Adding to 20221211022120 its reverse (2122011212202), we get a palindrome (22343222234322).

The spelling of 20221211022120 in words is "twenty trillion, two hundred twenty-one billion, two hundred eleven million, twenty-two thousand, one hundred twenty".