121201113151 has 8 divisors (see below), whose sum is σ = 124334381808. Its totient is φ = 118076280000.

The previous prime is 121201113139. The next prime is 121201113161. The reversal of 121201113151 is 151311102121.

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 121201113151 - 2¹¹ = 121201111103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201113161) 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, 2079765 + ... + 2137246.

It is an arithmetic number, because the mean of its divisors is an integer number (15541797726).

Almost surely, 2^121201113151 is an apocalyptic number.

121201113151 is a deficient number, since it is larger than the sum of its proper divisors (3133268657).

121201113151 is an equidigital number, since it uses as much as digits as its factorization.

121201113151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4217753.

The product of its (nonzero) digits is 60, while the sum is 19.

Adding to 121201113151 its reverse (151311102121), we get a palindrome (272512215272).

The spelling of 121201113151 in words is "one hundred twenty-one billion, two hundred one million, one hundred thirteen thousand, one hundred fifty-one".