133021223020 has 24 divisors (see below), whose sum is σ = 319250935584. Its totient is φ = 45607276416.

The previous prime is 133021223017. The next prime is 133021223021. The reversal of 133021223020 is 20322120331.

It is not an unprimeable number, because it can be changed into a prime (133021223021) 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, 475075657 + ... + 475075936.

It is an arithmetic number, because the mean of its divisors is an integer number (13302122316).

Almost surely, 2^133021223020 is an apocalyptic number.

133021223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133021223020 is an abundant number, since it is smaller than the sum of its proper divisors (186229712564).

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

133021223020 is a wasteful number, since it uses less digits than its factorization.

133021223020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950151609 (or 950151607 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 133021223020 its reverse (20322120331), we get a palindrome (153343343351).

The spelling of 133021223020 in words is "one hundred thirty-three billion, twenty-one million, two hundred twenty-three thousand, twenty".