1201201092 has 180 divisors, whose sum is σ = 3818267180. Its totient is φ = 316503936.

The previous prime is 1201201073. The next prime is 1201201093. The reversal of 1201201092 is 2901021021.

It can be written as a sum of positive squares in 2 ways, for example, as 354041856 + 847159236 = 18816^2 + 29106^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1201201093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1123134 + ... + 1124202.

Almost surely, 2^1201201092 is an apocalyptic number.

1201201092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201201092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1909133590).

1201201092 is an abundant number, since it is smaller than the sum of its proper divisors (2617066088).

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

1201201092 is a wasteful number, since it uses less digits than its factorization.

1201201092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 1201201092 is about 34658.3480852738. The cubic root of 1201201092 is about 1063.0129928230.

The spelling of 1201201092 in words is "one billion, two hundred one million, two hundred one thousand, ninety-two".