33220121010132 has 144 divisors (see below), whose sum is σ = 92378018084352. Its totient is φ = 9259461086400.

The previous prime is 33220121010119. The next prime is 33220121010247. The reversal of 33220121010132 is 23101012102233.

It is a super-2 number, since 2×33220121010132² (a number of 28 digits) contains 22 as substring.

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 = 33220121010099 and 33220121010108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20010507 + ... + 21606957.

Almost surely, 2^{33220121010132} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 33220121010132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46189009042176).

33220121010132 is an abundant number, since it is smaller than the sum of its proper divisors (59157897074220).

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

33220121010132 is a wasteful number, since it uses less digits than its factorization.

33220121010132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1597338 (or 1597329 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 33220121010132 its reverse (23101012102233), we get a palindrome (56321133112365).

The spelling of 33220121010132 in words is "thirty-three trillion, two hundred twenty billion, one hundred twenty-one million, ten thousand, one hundred thirty-two".