33220431330 has 16 divisors (see below), whose sum is σ = 79729035264. Its totient is φ = 8858781680.

The previous prime is 33220431313. The next prime is 33220431337. The reversal of 33220431330 is 3313402233.

It is a happy number.

It is a super-2 number, since 2×33220431330² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33220431330.

It is not an unprimeable number, because it can be changed into a prime (33220431337) 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, 553673826 + ... + 553673885.

It is an arithmetic number, because the mean of its divisors is an integer number (4983064704).

Almost surely, 2^33220431330 is an apocalyptic number.

33220431330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33220431330 is an abundant number, since it is smaller than the sum of its proper divisors (46508603934).

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

33220431330 is a wasteful number, since it uses less digits than its factorization.

33220431330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107347721.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 33220431330 its reverse (3313402233), we get a palindrome (36533833563).

The spelling of 33220431330 in words is "thirty-three billion, two hundred twenty million, four hundred thirty-one thousand, three hundred thirty".