33130221111212 has 24 divisors (see below), whose sum is σ = 60135375493200. Its totient is φ = 15951699562176.

The previous prime is 33130221111203. The next prime is 33130221111217. The reversal of 33130221111212 is 21211112203133.

It is a happy number.

It is a super-2 number, since 2×33130221111212² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33130221111217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376744103 + ... + 376832030.

It is an arithmetic number, because the mean of its divisors is an integer number (2505640645550).

Almost surely, 2^{33130221111212} is an apocalyptic number.

It is an amenable number.

33130221111212 is a deficient number, since it is larger than the sum of its proper divisors (27005154381988).

33130221111212 is a wasteful number, since it uses less digits than its factorization.

33130221111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 753576545 (or 753576543 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 33130221111212 its reverse (21211112203133), we get a palindrome (54341333314345).

The spelling of 33130221111212 in words is "thirty-three trillion, one hundred thirty billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twelve".