33131221012211 has 8 divisors (see below), whose sum is σ = 37983698179680. Its totient is φ = 28308605243328.

The previous prime is 33131221012147. The next prime is 33131221012243. The reversal of 33131221012211 is 11221012213133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 33131221012211 - 2⁶ = 33131221012147 is a prime.

It is a super-2 number, since 2×33131221012211² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (33131221012411) 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, 7465347266 + ... + 7465351703.

It is an arithmetic number, because the mean of its divisors is an integer number (4747962272460).

Almost surely, 2^{33131221012211} is an apocalyptic number.

33131221012211 is a deficient number, since it is larger than the sum of its proper divisors (4852477167469).

33131221012211 is a wasteful number, since it uses less digits than its factorization.

33131221012211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14930699293.

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

Adding to 33131221012211 its reverse (11221012213133), we get a palindrome (44352233225344).

The spelling of 33131221012211 in words is "thirty-three trillion, one hundred thirty-one billion, two hundred twenty-one million, twelve thousand, two hundred eleven".