1201121042 has 32 divisors (see below), whose sum is σ = 2067185664. Its totient is φ = 518086800.

The previous prime is 1201121023. The next prime is 1201121057. The reversal of 1201121042 is 2401211021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54917 + ... + 73607.

It is an arithmetic number, because the mean of its divisors is an integer number (64599552).

Almost surely, 2^1201121042 is an apocalyptic number.

1201121042 is a deficient number, since it is larger than the sum of its proper divisors (866064622).

1201121042 is a wasteful number, since it uses less digits than its factorization.

1201121042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18854.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1201121042 is about 34657.1932216099. The cubic root of 1201121042 is about 1062.9893786585.

Adding to 1201121042 its reverse (2401211021), we get a palindrome (3602332063).

The spelling of 1201121042 in words is "one billion, two hundred one million, one hundred twenty-one thousand, forty-two".