121012201331 has 16 divisors (see below), whose sum is σ = 138630727680. Its totient is φ = 103476592800.

The previous prime is 121012201327. The next prime is 121012201337. The reversal of 121012201331 is 133102210121.

It is not a de Polignac number, because 121012201331 - 2² = 121012201327 is a prime.

It is a super-2 number, since 2×121012201331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121012201337) 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, 17385830 + ... + 17392788.

It is an arithmetic number, because the mean of its divisors is an integer number (8664420480).

Almost surely, 2^121012201331 is an apocalyptic number.

121012201331 is a deficient number, since it is larger than the sum of its proper divisors (17618526349).

121012201331 is an equidigital number, since it uses as much as digits as its factorization.

121012201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12554.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121012201331 its reverse (133102210121), we get a palindrome (254114411452).

The spelling of 121012201331 in words is "one hundred twenty-one billion, twelve million, two hundred one thousand, three hundred thirty-one".