33121211130 has 48 divisors (see below), whose sum is σ = 98417314944. Its totient is φ = 7570562400.

The previous prime is 33121211117. The next prime is 33121211131. The reversal of 33121211130 is 3111212133.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (33121211131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 26286046 + ... + 26287305.

It is an arithmetic number, because the mean of its divisors is an integer number (2050360728).

Almost surely, 2^33121211130 is an apocalyptic number.

33121211130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33121211130 is an abundant number, since it is smaller than the sum of its proper divisors (65296103814).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33121211130 is a wasteful number, since it uses less digits than its factorization.

33121211130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52573371 (or 52573368 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 33121211130 its reverse (3111212133), we get a palindrome (36232423263).

The spelling of 33121211130 in words is "thirty-three billion, one hundred twenty-one million, two hundred eleven thousand, one hundred thirty".