121100222147 has 2 divisors, whose sum is σ = 121100222148. Its totient is φ = 121100222146.

The previous prime is 121100222077. The next prime is 121100222167. The reversal of 121100222147 is 741222001121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121100222147 - 2²⁴ = 121083444931 is a prime.

It is not a weakly prime, because it can be changed into another prime (121100222167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550111073 + 60550111074.

It is an arithmetic number, because the mean of its divisors is an integer number (60550111074).

Almost surely, 2^121100222147 is an apocalyptic number.

121100222147 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100222147 is an equidigital number, since it uses as much as digits as its factorization.

121100222147 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 121100222147 its reverse (741222001121), we get a palindrome (862322223268).

The spelling of 121100222147 in words is "one hundred twenty-one billion, one hundred million, two hundred twenty-two thousand, one hundred forty-seven".