201102111102021 has 8 divisors (see below), whose sum is σ = 268151118681024. Its totient is φ = 134060588795520.

The previous prime is 201102111102017. The next prime is 201102111102037. The reversal of 201102111102021 is 120201111201102.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201102111102021 - 2² = 201102111102017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201102111102001) 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, 1871255436 + ... + 1871362901.

It is an arithmetic number, because the mean of its divisors is an integer number (33518889835128).

Almost surely, 2^{201102111102021} is an apocalyptic number.

It is an amenable number.

201102111102021 is a deficient number, since it is larger than the sum of its proper divisors (67049007579003).

201102111102021 is a wasteful number, since it uses less digits than its factorization.

201102111102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3742636251.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 201102111102021 its reverse (120201111201102), we get a palindrome (321303222303123).

The spelling of 201102111102021 in words is "two hundred one trillion, one hundred two billion, one hundred eleven million, one hundred two thousand, twenty-one".