1201121100331 has 8 divisors (see below), whose sum is σ = 1207273171104. Its totient is φ = 1194969585600.

The previous prime is 1201121100329. The next prime is 1201121100337. The reversal of 1201121100331 is 1330011211021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1201121100331 - 2¹ = 1201121100329 is a prime.

It is a super-2 number, since 2×1201121100331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201121100337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4605631 + ... + 4859431.

It is an arithmetic number, because the mean of its divisors is an integer number (150909146388).

Almost surely, 2^{1201121100331} is an apocalyptic number.

1201121100331 is a deficient number, since it is larger than the sum of its proper divisors (6152070773).

1201121100331 is a wasteful number, since it uses less digits than its factorization.

1201121100331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278021.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1201121100331 its reverse (1330011211021), we get a palindrome (2531132311352).

The spelling of 1201121100331 in words is "one trillion, two hundred one billion, one hundred twenty-one million, one hundred thousand, three hundred thirty-one".