1133213021220 has 48 divisors (see below), whose sum is σ = 3626281669248. Its totient is φ = 259020119040.

The previous prime is 1133213021189. The next prime is 1133213021251. The reversal of 1133213021220 is 221203123311.

It is an interprime number because it is at equal distance from previous prime (1133213021189) and next prime (1133213021251).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1349062701 + ... + 1349063540.

It is an arithmetic number, because the mean of its divisors is an integer number (75547534776).

Almost surely, 2^{1133213021220} is an apocalyptic number.

1133213021220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1133213021220 is an abundant number, since it is smaller than the sum of its proper divisors (2493068648028).

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

1133213021220 is a wasteful number, since it uses less digits than its factorization.

1133213021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698126260 (or 2698126258 counting only the distinct ones).

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

Adding to 1133213021220 its reverse (221203123311), we get a palindrome (1354416144531).

The spelling of 1133213021220 in words is "one trillion, one hundred thirty-three billion, two hundred thirteen million, twenty-one thousand, two hundred twenty".