121300012221 has 8 divisors (see below), whose sum is σ = 161749688160. Its totient is φ = 80858505552.

The previous prime is 121300012201. The next prime is 121300012237. The reversal of 121300012221 is 122210003121.

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

It is not a de Polignac number, because 121300012221 - 2⁶ = 121300012157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121300012221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121300012201) 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, 2007586 + ... + 2067123.

It is an arithmetic number, because the mean of its divisors is an integer number (20218711020).

Almost surely, 2^121300012221 is an apocalyptic number.

It is an amenable number.

121300012221 is a deficient number, since it is larger than the sum of its proper divisors (40449675939).

121300012221 is an equidigital number, since it uses as much as digits as its factorization.

121300012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4084635.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121300012221 its reverse (122210003121), we get a palindrome (243510015342).

It can be divided in two parts, 1213000 and 12221, that added together give a palindrome (1225221).

The spelling of 121300012221 in words is "one hundred twenty-one billion, three hundred million, twelve thousand, two hundred twenty-one".