1012020111120 has 40 divisors (see below), whose sum is σ = 3137262345216. Its totient is φ = 269872029568.

The previous prime is 1012020111043. The next prime is 1012020111127. The reversal of 1012020111120 is 211110202101.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×1012020111120² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1012020111096 and 1012020111105.

It is not an unprimeable number, because it can be changed into a prime (1012020111127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2108374992 + ... + 2108375471.

Almost surely, 2^{1012020111120} is an apocalyptic number.

1012020111120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012020111120 is an abundant number, since it is smaller than the sum of its proper divisors (2125242234096).

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

1012020111120 is a wasteful number, since it uses less digits than its factorization.

1012020111120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4216750479 (or 4216750473 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1012020111120 its reverse (211110202101), we get a palindrome (1223130313221).

The spelling of 1012020111120 in words is "one trillion, twelve billion, twenty million, one hundred eleven thousand, one hundred twenty".