1201121150 has 24 divisors (see below), whose sum is σ = 2286044904. Its totient is φ = 469274400.

The previous prime is 1201121149. The next prime is 1201121219. The reversal of 1201121150 is 511211021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277181 + ... + 281480.

It is an arithmetic number, because the mean of its divisors is an integer number (95251871).

Almost surely, 2^1201121150 is an apocalyptic number.

1201121150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201121150 is a deficient number, since it is larger than the sum of its proper divisors (1084923754).

1201121150 is a wasteful number, since it uses less digits than its factorization.

1201121150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558716 (or 558711 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 14.

The square root of 1201121150 is about 34657.1947797279. The cubic root of 1201121150 is about 1062.9894105185.

Adding to 1201121150 its reverse (511211021), we get a palindrome (1712332171).

The spelling of 1201121150 in words is "one billion, two hundred one million, one hundred twenty-one thousand, one hundred fifty".