1133213001220 has 96 divisors (see below), whose sum is σ = 2419294445568. Its totient is φ = 445816369152.

The previous prime is 1133213001197. The next prime is 1133213001229. The reversal of 1133213001220 is 221003123311.

It is a super-2 number, since 2×1133213001220² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1133213001229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 635564449 + ... + 635566231.

It is an arithmetic number, because the mean of its divisors is an integer number (25200983808).

Almost surely, 2^{1133213001220} is an apocalyptic number.

1133213001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133213001220 is an abundant number, since it is smaller than the sum of its proper divisors (1286081444348).

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

1133213001220 is a wasteful number, since it uses less digits than its factorization.

1133213001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3749 (or 3747 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1133213001220 its reverse (221003123311), we get a palindrome (1354216124531).

The spelling of 1133213001220 in words is "one trillion, one hundred thirty-three billion, two hundred thirteen million, one thousand, two hundred twenty".