20221021021122 has 32 divisors (see below), whose sum is σ = 45380509234560. Its totient is φ = 6673604295600.

The previous prime is 20221021021121. The next prime is 20221021021133. The reversal of 20221021021122 is 22112012012202.

It is a happy number.

20221021021122 is a `hidden beast` number, since 2 + 0 + 221 + 0 + 210 + 211 + 22 = 666.

It is a super-2 number, since 2×20221021021122² (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 = 20221021021095 and 20221021021104.

It is not an unprimeable number, because it can be changed into a prime (20221021021121) 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, 1853773518 + ... + 1853784425.

It is an arithmetic number, because the mean of its divisors is an integer number (1418140913580).

Almost surely, 2^{20221021021122} is an apocalyptic number.

20221021021122 is an abundant number, since it is smaller than the sum of its proper divisors (25159488213438).

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

20221021021122 is a wasteful number, since it uses less digits than its factorization.

20221021021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707558055 (or 3707558049 counting only the distinct ones).

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

Adding to 20221021021122 its reverse (22112012012202), we get a palindrome (42333033033324).

The spelling of 20221021021122 in words is "twenty trillion, two hundred twenty-one billion, twenty-one million, twenty-one thousand, one hundred twenty-two".