133122312220 has 48 divisors (see below), whose sum is σ = 285748077888. Its totient is φ = 52076111360.

The previous prime is 133122312203. The next prime is 133122312221. The reversal of 133122312220 is 22213221331.

It is a super-2 number, since 2×133122312220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133122312191 and 133122312200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133122312221) 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, 127752 + ... + 531568.

It is an arithmetic number, because the mean of its divisors is an integer number (5953084956).

Almost surely, 2^133122312220 is an apocalyptic number.

133122312220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133122312220 is an abundant number, since it is smaller than the sum of its proper divisors (152625765668).

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

133122312220 is a wasteful number, since it uses less digits than its factorization.

133122312220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404190 (or 404188 counting only the distinct ones).

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

Adding to 133122312220 its reverse (22213221331), we get a palindrome (155335533551).

The spelling of 133122312220 in words is "one hundred thirty-three billion, one hundred twenty-two million, three hundred twelve thousand, two hundred twenty".