1010122111220 has 24 divisors (see below), whose sum is σ = 2121538494600. Its totient is φ = 403995118592.

The previous prime is 1010122111199. The next prime is 1010122111247. The reversal of 1010122111220 is 221112210101.

It can be written as a sum of positive squares in 4 ways, for example, as 240733497316 + 769388613904 = 490646^2 + 877148^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1010122111195 and 1010122111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3203525 + ... + 3504684.

It is an arithmetic number, because the mean of its divisors is an integer number (88397437275).

Almost surely, 2^{1010122111220} is an apocalyptic number.

1010122111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010122111220 is an abundant number, since it is smaller than the sum of its proper divisors (1111416383380).

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

1010122111220 is a wasteful number, since it uses less digits than its factorization.

1010122111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6715747 (or 6715745 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1010122111220 its reverse (221112210101), we get a palindrome (1231234321321).

The spelling of 1010122111220 in words is "one trillion, ten billion, one hundred twenty-two million, one hundred eleven thousand, two hundred twenty".