201120120221100 has 72 divisors (see below), whose sum is σ = 581909161211280. Its totient is φ = 53631883361280.

The previous prime is 201120120221087. The next prime is 201120120221101. The reversal of 201120120221100 is 1122021021102.

It is a super-2 number, since 2×201120120221100² (a number of 29 digits) contains 22 as substring.

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 201120120221100.

It is not an unprimeable number, because it can be changed into a prime (201120120221101) 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, 146222184 + ... + 147591216.

It is an arithmetic number, because the mean of its divisors is an integer number (8082071683490).

Almost surely, 2^{201120120221100} is an apocalyptic number.

201120120221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120120221100 is an abundant number, since it is smaller than the sum of its proper divisors (380789040990180).

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

201120120221100 is a wasteful number, since it uses less digits than its factorization.

201120120221100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858739 (or 1858732 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201120120221100 its reverse (1122021021102), we get a palindrome (202242141242202).

The spelling of 201120120221100 in words is "two hundred one trillion, one hundred twenty billion, one hundred twenty million, two hundred twenty-one thousand, one hundred".