1220120100132 has 48 divisors (see below), whose sum is σ = 3019102736832. Its totient is φ = 382187427840.

The previous prime is 1220120100119. The next prime is 1220120100137. The reversal of 1220120100132 is 2310010210221.

It is a super-2 number, since 2×1220120100132² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1220120100137) 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, 4519669 + ... + 4782012.

It is an arithmetic number, because the mean of its divisors is an integer number (62897973684).

Almost surely, 2^{1220120100132} is an apocalyptic number.

1220120100132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220120100132 is an abundant number, since it is smaller than the sum of its proper divisors (1798982636700).

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

1220120100132 is a wasteful number, since it uses less digits than its factorization.

1220120100132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9302348 (or 9302346 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1220120100132 its reverse (2310010210221), we get a palindrome (3530130310353).

The spelling of 1220120100132 in words is "one trillion, two hundred twenty billion, one hundred twenty million, one hundred thousand, one hundred thirty-two".