102120201092 has 96 divisors (see below), whose sum is σ = 230111400960. Its totient is φ = 38574996480.

The previous prime is 102120201059. The next prime is 102120201097. The reversal of 102120201092 is 290102021201.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (102120201097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 628634 + ... + 774222.

It is an arithmetic number, because the mean of its divisors is an integer number (2396993760).

Almost surely, 2^102120201092 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102120201092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115055700480).

102120201092 is an abundant number, since it is smaller than the sum of its proper divisors (127991199868).

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

102120201092 is a wasteful number, since it uses less digits than its factorization.

102120201092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145701 (or 145699 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 102120201092 its reverse (290102021201), we get a palindrome (392222222293).

The spelling of 102120201092 in words is "one hundred two billion, one hundred twenty million, two hundred one thousand, ninety-two".