120121120221 has 8 divisors (see below), whose sum is σ = 160165733280. Its totient is φ = 80078626992.

The previous prime is 120121120201. The next prime is 120121120241. The reversal of 120121120221 is 122021121021.

It is an interprime number because it is at equal distance from previous prime (120121120201) and next prime (120121120241).

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

It is not a de Polignac number, because 120121120221 - 2³⁰ = 119047378397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120121120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120121120201) 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, 392655 + ... + 628028.

It is an arithmetic number, because the mean of its divisors is an integer number (20020716660).

Almost surely, 2^120121120221 is an apocalyptic number.

It is an amenable number.

120121120221 is a deficient number, since it is larger than the sum of its proper divisors (40044613059).

120121120221 is a wasteful number, since it uses less digits than its factorization.

120121120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059915.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 120121120221 its reverse (122021121021), we get a palindrome (242142241242).

The spelling of 120121120221 in words is "one hundred twenty billion, one hundred twenty-one million, one hundred twenty thousand, two hundred twenty-one".