33311220042 has 8 divisors (see below), whose sum is σ = 66622440096. Its totient is φ = 11103740012.

The previous prime is 33311220029. The next prime is 33311220043. The reversal of 33311220042 is 24002211333.

It is a sphenic number, since it is the product of 3 distinct primes.

33311220042 is an admirable number.

It is a super-2 number, since 2×33311220042² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33311220043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775934998 + ... + 2775935009.

It is an arithmetic number, because the mean of its divisors is an integer number (8327805012).

Almost surely, 2^33311220042 is an apocalyptic number.

33311220042 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

33311220042 is a wasteful number, since it uses less digits than its factorization.

33311220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551870012.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 33311220042 its reverse (24002211333), we get a palindrome (57313431375).

The spelling of 33311220042 in words is "thirty-three billion, three hundred eleven million, two hundred twenty thousand, forty-two".