2122022122100 has 18 divisors (see below), whose sum is σ = 4604788005174. Its totient is φ = 848808848800.

The previous prime is 2122022122069. The next prime is 2122022122117. The reversal of 2122022122100 is 12212202212.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9452895076 + 2112569227024 = 97226^2 + 1453468^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10610110511 + ... + 10610110710.

It is an arithmetic number, because the mean of its divisors is an integer number (255821555843).

Almost surely, 2^{2122022122100} is an apocalyptic number.

2122022122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2122022122100 is an abundant number, since it is smaller than the sum of its proper divisors (2482765883074).

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

2122022122100 is a wasteful number, since it uses less digits than its factorization.

2122022122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21220221235 (or 21220221228 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 2122022122100 its reverse (12212202212), we get a palindrome (2134234324312).

The spelling of 2122022122100 in words is "two trillion, one hundred twenty-two billion, twenty-two million, one hundred twenty-two thousand, one hundred".