121120222001 has 2 divisors, whose sum is σ = 121120222002. Its totient is φ = 121120222000.

The previous prime is 121120221983. The next prime is 121120222009. The reversal of 121120222001 is 100222021121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110606795776 + 10513426225 = 332576^2 + 102535^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121120222001 is a prime.

It is not a weakly prime, because it can be changed into another prime (121120222009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60560111000 + 60560111001.

It is an arithmetic number, because the mean of its divisors is an integer number (60560111001).

Almost surely, 2^121120222001 is an apocalyptic number.

It is an amenable number.

121120222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

121120222001 is an equidigital number, since it uses as much as digits as its factorization.

121120222001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121120222001 its reverse (100222021121), we get a palindrome (221342243122).

The spelling of 121120222001 in words is "one hundred twenty-one billion, one hundred twenty million, two hundred twenty-two thousand, one".