2122021021122 has 48 divisors (see below), whose sum is σ = 4684719794040. Its totient is φ = 693956030976.

The previous prime is 2122021021079. The next prime is 2122021021123. The reversal of 2122021021122 is 2211201202212.

It is a happy number.

2122021021122 is a `hidden beast` number, since 2 + 1 + 220 + 210 + 211 + 22 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 1935301104801 + 186719916321 = 1391151^2 + 432111^2 .

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 = 2122021021095 and 2122021021104.

It is not an unprimeable number, because it can be changed into a prime (2122021021123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21060808 + ... + 21161324.

Almost surely, 2^{2122021021122} is an apocalyptic number.

2122021021122 is an abundant number, since it is smaller than the sum of its proper divisors (2562698772918).

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

2122021021122 is a wasteful number, since it uses less digits than its factorization.

2122021021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122707 (or 122704 counting only the distinct ones).

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

Adding to 2122021021122 its reverse (2211201202212), we get a palindrome (4333222223334).

The spelling of 2122021021122 in words is "two trillion, one hundred twenty-two billion, twenty-one million, twenty-one thousand, one hundred twenty-two".