1220132111013 has 48 divisors (see below), whose sum is σ = 1872270828480. Its totient is φ = 763512003072.

The previous prime is 1220132110949. The next prime is 1220132111041. The reversal of 1220132111013 is 3101112310221.

1220132111013 is a `hidden beast` number, since 1 + 220 + 1 + 321 + 110 + 13 = 666.

It is not a de Polignac number, because 1220132111013 - 2⁶ = 1220132110949 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220132111063) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 61572495 + ... + 61592307.

It is an arithmetic number, because the mean of its divisors is an integer number (39005642260).

Almost surely, 2^{1220132111013} is an apocalyptic number.

It is an amenable number.

1220132111013 is a deficient number, since it is larger than the sum of its proper divisors (652138717467).

1220132111013 is a wasteful number, since it uses less digits than its factorization.

1220132111013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23138 (or 23135 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1220132111013 its reverse (3101112310221), we get a palindrome (4321244421234).

The spelling of 1220132111013 in words is "one trillion, two hundred twenty billion, one hundred thirty-two million, one hundred eleven thousand, thirteen".