201120001222100 has 36 divisors (see below), whose sum is σ = 437529723651804. Its totient is φ = 80245360673280.

The previous prime is 201120001222093. The next prime is 201120001222103. The reversal of 201120001222100 is 1222100021102.

It can be written as a sum of positive squares in 6 ways, for example, as 24160940882884 + 176959060339216 = 4915378^2 + 13302596^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201120001222103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2532957797 + ... + 2533037196.

Almost surely, 2^{201120001222100} is an apocalyptic number.

201120001222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120001222100 is an abundant number, since it is smaller than the sum of its proper divisors (236409722429704).

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

201120001222100 is a wasteful number, since it uses less digits than its factorization.

201120001222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065995404 (or 5065995397 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 201120001222100 its reverse (1222100021102), we get a palindrome (202342101243202).

The spelling of 201120001222100 in words is "two hundred one trillion, one hundred twenty billion, one million, two hundred twenty-two thousand, one hundred".