1201121411 has 16 divisors (see below), whose sum is σ = 1387134144. Its totient is φ = 1018773504.

The previous prime is 1201121401. The next prime is 1201121429. The reversal of 1201121411 is 1141211021.

It is not a de Polignac number, because 1201121411 - 2¹⁸ = 1200859267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201121401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263891 + ... + 268403.

It is an arithmetic number, because the mean of its divisors is an integer number (86695884).

Almost surely, 2^1201121411 is an apocalyptic number.

1201121411 is a deficient number, since it is larger than the sum of its proper divisors (186012733).

1201121411 is a wasteful number, since it uses less digits than its factorization.

1201121411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910.

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1201121411 is about 34657.1985451796. The cubic root of 1201121411 is about 1062.9894875132.

Adding to 1201121411 its reverse (1141211021), we get a palindrome (2342332432).

The spelling of 1201121411 in words is "one billion, two hundred one million, one hundred twenty-one thousand, four hundred eleven".