121010020012221 has 8 divisors (see below), whose sum is σ = 161366629956000. Its totient is φ = 80663378371632.

The previous prime is 121010020012213. The next prime is 121010020012249. The reversal of 121010020012221 is 122210020010121.

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

It is not a de Polignac number, because 121010020012221 - 2³ = 121010020012213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121010020012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121010020012421) 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, 2492047471 + ... + 2492096028.

It is an arithmetic number, because the mean of its divisors is an integer number (20170828744500).

Almost surely, 2^{121010020012221} is an apocalyptic number.

It is an amenable number.

121010020012221 is a deficient number, since it is larger than the sum of its proper divisors (40356609943779).

121010020012221 is an equidigital number, since it uses as much as digits as its factorization.

121010020012221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984151595.

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

Adding to 121010020012221 its reverse (122210020010121), we get a palindrome (243220040022342).

The spelling of 121010020012221 in words is "one hundred twenty-one trillion, ten billion, twenty million, twelve thousand, two hundred twenty-one".