33221212233 has 48 divisors (see below), whose sum is σ = 50288249088. Its totient is φ = 19481061600.

The previous prime is 33221212231. The next prime is 33221212243.

33221212233 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 33221212233 - 2¹ = 33221212231 is a prime.

It is a super-2 number, since 2×33221212233² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33221212231) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1660218 + ... + 1680108.

It is an arithmetic number, because the mean of its divisors is an integer number (1047671856).

Almost surely, 2^33221212233 is an apocalyptic number.

33221212233 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

33221212233 is a deficient number, since it is larger than the sum of its proper divisors (17067036855).

33221212233 is a wasteful number, since it uses less digits than its factorization.

33221212233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20066 (or 20055 counting only the distinct ones).

The product of its digits is 2592, while the sum is 24.

The spelling of 33221212233 in words is "thirty-three billion, two hundred twenty-one million, two hundred twelve thousand, two hundred thirty-three".