121000011120221 has 4 divisors (see below), whose sum is σ = 121005206283744. Its totient is φ = 120994815956700.

The previous prime is 121000011120161. The next prime is 121000011120223. The reversal of 121000011120221 is 122021110000121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121000011120221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121000011120196 and 121000011120205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121000011120223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2597546825 + ... + 2597593406.

It is an arithmetic number, because the mean of its divisors is an integer number (30251301570936).

Almost surely, 2^{121000011120221} is an apocalyptic number.

It is an amenable number.

121000011120221 is a deficient number, since it is larger than the sum of its proper divisors (5195163523).

121000011120221 is an equidigital number, since it uses as much as digits as its factorization.

121000011120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195163522.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121000011120221 its reverse (122021110000121), we get a palindrome (243021121120342).

The spelling of 121000011120221 in words is "one hundred twenty-one trillion, eleven million, one hundred twenty thousand, two hundred twenty-one".