121334151021 has 8 divisors (see below), whose sum is σ = 161974492704. Its totient is φ = 80791621680.

The previous prime is 121334151019. The next prime is 121334151061. The reversal of 121334151021 is 120151433121.

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

It is not a de Polignac number, because 121334151021 - 2¹ = 121334151019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121334150982 and 121334151000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121334151061) 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, 24450190 + ... + 24455151.

It is an arithmetic number, because the mean of its divisors is an integer number (20246811588).

Almost surely, 2^121334151021 is an apocalyptic number.

It is an amenable number.

121334151021 is a deficient number, since it is larger than the sum of its proper divisors (40640341683).

121334151021 is an equidigital number, since it uses as much as digits as its factorization.

121334151021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48906171.

The product of its (nonzero) digits is 720, while the sum is 24.

Adding to 121334151021 its reverse (120151433121), we get a palindrome (241485584142).

The spelling of 121334151021 in words is "one hundred twenty-one billion, three hundred thirty-four million, one hundred fifty-one thousand, twenty-one".