121100222021971 has 2 divisors, whose sum is σ = 121100222021972. Its totient is φ = 121100222021970.

The previous prime is 121100222021953. The next prime is 121100222022029. The reversal of 121100222021971 is 179120222001121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121100222021971 - 2⁷ = 121100222021843 is a prime.

It is not a weakly prime, because it can be changed into another prime (121100222001971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60550111010985 + 60550111010986.

It is an arithmetic number, because the mean of its divisors is an integer number (60550111010986).

Almost surely, 2^{121100222021971} is an apocalyptic number.

121100222021971 is a deficient number, since it is larger than the sum of its proper divisors (1).

121100222021971 is an equidigital number, since it uses as much as digits as its factorization.

121100222021971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The spelling of 121100222021971 in words is "one hundred twenty-one trillion, one hundred billion, two hundred twenty-two million, twenty-one thousand, nine hundred seventy-one".