33100221013 has 4 divisors (see below), whose sum is σ = 33101476128. Its totient is φ = 33098965900.

The previous prime is 33100221001. The next prime is 33100221041. The reversal of 33100221013 is 31012200133.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31012200133 = 6967 ⋅4451299.

It is a cyclic number.

It is not a de Polignac number, because 33100221013 - 2²⁹ = 32563350101 is a prime.

It is a super-2 number, since 2×33100221013² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33100221073) 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, 587131 + ... + 641032.

It is an arithmetic number, because the mean of its divisors is an integer number (8275369032).

Almost surely, 2^33100221013 is an apocalyptic number.

It is an amenable number.

33100221013 is a deficient number, since it is larger than the sum of its proper divisors (1255115).

33100221013 is a wasteful number, since it uses less digits than its factorization.

33100221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1255114.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 33100221013 its reverse (31012200133), we get a palindrome (64112421146).

The spelling of 33100221013 in words is "thirty-three billion, one hundred million, two hundred twenty-one thousand, thirteen".