1220113033212 has 48 divisors (see below), whose sum is σ = 2874775904000. Its totient is φ = 402726981888.

The previous prime is 1220113033063. The next prime is 1220113033219. The reversal of 1220113033212 is 2123303110221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220113033219) 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, 23766123 + ... + 23817405.

Almost surely, 2^{1220113033212} is an apocalyptic number.

1220113033212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1220113033212 is an abundant number, since it is smaller than the sum of its proper divisors (1654662870788).

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

1220113033212 is a wasteful number, since it uses less digits than its factorization.

1220113033212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70642 (or 70640 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1220113033212 its reverse (2123303110221), we get a palindrome (3343416143433).

The spelling of 1220113033212 in words is "one trillion, two hundred twenty billion, one hundred thirteen million, thirty-three thousand, two hundred twelve".