33221214440 has 16 divisors (see below), whose sum is σ = 74747732580. Its totient is φ = 13288485760.

The previous prime is 33221214431. The next prime is 33221214461. The reversal of 33221214440 is 4441212233.

It can be written as a sum of positive squares in 2 ways, for example, as 31781619076 + 1439595364 = 178274^2 + 37942^2 .

It is a super-2 number, since 2×33221214440² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 415265141 + ... + 415265220.

Almost surely, 2^33221214440 is an apocalyptic number.

It is an amenable number.

33221214440 is an abundant number, since it is smaller than the sum of its proper divisors (41526518140).

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

33221214440 is a wasteful number, since it uses less digits than its factorization.

33221214440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830530372 (or 830530368 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 33221214440 its reverse (4441212233), we get a palindrome (37662426673).

The spelling of 33221214440 in words is "thirty-three billion, two hundred twenty-one million, two hundred fourteen thousand, four hundred forty".