133102220100 has 144 divisors (see below), whose sum is σ = 401422932288. Its totient is φ = 34018997760.

The previous prime is 133102220077. The next prime is 133102220101. The reversal of 133102220100 is 1022201331.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 133102220100.

It is not an unprimeable number, because it can be changed into a prime (133102220101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 654214 + ... + 833186.

It is an arithmetic number, because the mean of its divisors is an integer number (2787659252).

Almost surely, 2^133102220100 is an apocalyptic number.

133102220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133102220100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200711466144).

133102220100 is an abundant number, since it is smaller than the sum of its proper divisors (268320712188).

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

133102220100 is a wasteful number, since it uses less digits than its factorization.

133102220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179094 (or 179087 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 133102220100 its reverse (1022201331), we get a palindrome (134124421431).

The spelling of 133102220100 in words is "one hundred thirty-three billion, one hundred two million, two hundred twenty thousand, one hundred".