201200021092 has 24 divisors (see below), whose sum is σ = 419895697536. Its totient is φ = 82479511488.

The previous prime is 201200021083. The next prime is 201200021093. The reversal of 201200021092 is 290120002102.

It is not an unprimeable number, because it can be changed into a prime (201200021093) 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, 156210553 + ... + 156211840.

It is an arithmetic number, because the mean of its divisors is an integer number (17495654064).

Almost surely, 2^201200021092 is an apocalyptic number.

It is an amenable number.

201200021092 is an abundant number, since it is smaller than the sum of its proper divisors (218695676444).

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

201200021092 is a wasteful number, since it uses less digits than its factorization.

201200021092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312422427 (or 312422425 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 201200021092 its reverse (290120002102), we get a palindrome (491320023194).

The spelling of 201200021092 in words is "two hundred one billion, two hundred million, twenty-one thousand, ninety-two".