32121213033 has 32 divisors (see below), whose sum is σ = 53096553216. Its totient is φ = 16819365888.

The previous prime is 32121213013. The next prime is 32121213037. The reversal of 32121213033 is 33031212123.

It is not a de Polignac number, because 32121213033 - 2⁹ = 32121212521 is a prime.

It is a super-2 number, since 2×32121213033² (a number of 22 digits) contains 22 as substring.

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

It is not an unprimeable number, because it can be changed into a prime (32121213037) 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, 392016 + ... + 466817.

It is an arithmetic number, because the mean of its divisors is an integer number (1659267288).

Almost surely, 2^32121213033 is an apocalyptic number.

It is an amenable number.

32121213033 is a deficient number, since it is larger than the sum of its proper divisors (20975340183).

32121213033 is a wasteful number, since it uses less digits than its factorization.

32121213033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858993.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 32121213033 its reverse (33031212123), we get a palindrome (65152425156).

The spelling of 32121213033 in words is "thirty-two billion, one hundred twenty-one million, two hundred thirteen thousand, thirty-three".