1213113302220 has 48 divisors (see below), whose sum is σ = 3513845432160. Its totient is φ = 312341815296.

The previous prime is 1213113302213. The next prime is 1213113302267. The reversal of 1213113302220 is 222033113121.

It is a super-2 number, since 2×1213113302220² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348594037 + ... + 348597516.

It is an arithmetic number, because the mean of its divisors is an integer number (73205113170).

Almost surely, 2^{1213113302220} is an apocalyptic number.

1213113302220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213113302220 is an abundant number, since it is smaller than the sum of its proper divisors (2300732129940).

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

1213113302220 is a wasteful number, since it uses less digits than its factorization.

1213113302220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 697191594 (or 697191592 counting only the distinct ones).

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

Adding to 1213113302220 its reverse (222033113121), we get a palindrome (1435146415341).

The spelling of 1213113302220 in words is "one trillion, two hundred thirteen billion, one hundred thirteen million, three hundred two thousand, two hundred twenty".