33312000122221 has 4 divisors (see below), whose sum is σ = 33312802031712. Its totient is φ = 33311198212732.

The previous prime is 33312000122207. The next prime is 33312000122263. The reversal of 33312000122221 is 12222100021333.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33312000122221 is a prime.

It is a super-2 number, since 2×33312000122221² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33312000122192 and 33312000122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33312000120221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400892431 + ... + 400975516.

It is an arithmetic number, because the mean of its divisors is an integer number (8328200507928).

Almost surely, 2^{33312000122221} is an apocalyptic number.

It is an amenable number.

33312000122221 is a deficient number, since it is larger than the sum of its proper divisors (801909491).

33312000122221 is an equidigital number, since it uses as much as digits as its factorization.

33312000122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801909490.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 33312000122221 its reverse (12222100021333), we get a palindrome (45534100143554).

The spelling of 33312000122221 in words is "thirty-three trillion, three hundred twelve billion, one hundred twenty-two thousand, two hundred twenty-one".