33130331101220 has 48 divisors (see below), whose sum is σ = 69620467433328. Its totient is φ = 13243226480640.

The previous prime is 33130331101187. The next prime is 33130331101229. The reversal of 33130331101220 is 2210113303133.

It can be written as a sum of positive squares in 8 ways, for example, as 2149173592036 + 30981157509184 = 1466006^2 + 5566072^2 .

It is not an unprimeable number, because it can be changed into a prime (33130331101229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181527452 + ... + 181709868.

It is an arithmetic number, because the mean of its divisors is an integer number (1450426404861).

Almost surely, 2^{33130331101220} is an apocalyptic number.

It is an amenable number.

33130331101220 is an abundant number, since it is smaller than the sum of its proper divisors (36490136332108).

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

33130331101220 is a wasteful number, since it uses less digits than its factorization.

33130331101220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188480 (or 188478 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 33130331101220 its reverse (2210113303133), we get a palindrome (35340444404353).

The spelling of 33130331101220 in words is "thirty-three trillion, one hundred thirty billion, three hundred thirty-one million, one hundred one thousand, two hundred twenty".