201201012020100 has 72 divisors (see below), whose sum is σ = 582150966703488. Its totient is φ = 53652739433600.

The previous prime is 201201012020087. The next prime is 201201012020117. The reversal of 201201012020100 is 1020210102102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13375765 + ... + 24110435.

It is an arithmetic number, because the mean of its divisors is an integer number (8085430093104).

Almost surely, 2^{201201012020100} is an apocalyptic number.

201201012020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201201012020100 is an abundant number, since it is smaller than the sum of its proper divisors (380949954683388).

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

201201012020100 is a wasteful number, since it uses less digits than its factorization.

201201012020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10797165 (or 10797158 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 201201012020100 its reverse (1020210102102), we get a palindrome (202221222122202).

The spelling of 201201012020100 in words is "two hundred one trillion, two hundred one billion, twelve million, twenty thousand, one hundred".