2001222033132 has 96 divisors (see below), whose sum is σ = 5644089364480. Its totient is φ = 539116845120.

The previous prime is 2001222033127. The next prime is 2001222033133. The reversal of 2001222033132 is 2313302221002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2001222033099 and 2001222033108.

It is not an unprimeable number, because it can be changed into a prime (2001222033133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2634568 + ... + 3308079.

Almost surely, 2^{2001222033132} is an apocalyptic number.

It is an amenable number.

2001222033132 is an abundant number, since it is smaller than the sum of its proper divisors (3642867331348).

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

2001222033132 is a wasteful number, since it uses less digits than its factorization.

2001222033132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5942891 (or 5942889 counting only the distinct ones).

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

Adding to 2001222033132 its reverse (2313302221002), we get a palindrome (4314524254134).

The spelling of 2001222033132 in words is "two trillion, one billion, two hundred twenty-two million, thirty-three thousand, one hundred thirty-two".