1201211092 has 12 divisors (see below), whose sum is σ = 2225773620. Its totient is φ = 565275776.

The previous prime is 1201211069. The next prime is 1201211107. The reversal of 1201211092 is 2901121021.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 674233156 + 526977936 = 25966^2 + 22956^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8832367 + ... + 8832502.

It is an arithmetic number, because the mean of its divisors is an integer number (185481135).

Almost surely, 2^1201211092 is an apocalyptic number.

It is an amenable number.

1201211092 is a deficient number, since it is larger than the sum of its proper divisors (1024562528).

1201211092 is a wasteful number, since it uses less digits than its factorization.

1201211092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17664890 (or 17664888 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 1201211092 is about 34658.4923503605. The cubic root of 1201211092 is about 1063.0159426761.

It can be divided in two parts, 12012 and 11092, that added together give a square (23104 = 152²).

The spelling of 1201211092 in words is "one billion, two hundred one million, two hundred eleven thousand, ninety-two".