33222021222 has 32 divisors (see below), whose sum is σ = 71687478240. Its totient is φ = 10203252480.

The previous prime is 33222021199. The next prime is 33222021229. The reversal of 33222021222 is 22212022233.

It is a super-2 number, since 2×33222021222² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33222021229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351447 + ... + 435842.

It is an arithmetic number, because the mean of its divisors is an integer number (2240233695).

Almost surely, 2^33222021222 is an apocalyptic number.

33222021222 is an abundant number, since it is smaller than the sum of its proper divisors (38465457018).

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

33222021222 is a wasteful number, since it uses less digits than its factorization.

33222021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787848.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 33222021222 its reverse (22212022233), we get a palindrome (55434043455).

The spelling of 33222021222 in words is "thirty-three billion, two hundred twenty-two million, twenty-one thousand, two hundred twenty-two".