121122110010221 has 2 divisors, whose sum is σ = 121122110010222. Its totient is φ = 121122110010220.

The previous prime is 121122110010197. The next prime is 121122110010233. The reversal of 121122110010221 is 122010011221121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119967968034121 + 1154141976100 = 10952989^2 + 1074310^2 .

It is a cyclic number.

It is not a de Polignac number, because 121122110010221 - 2⁶ = 121122110010157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121122110010221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121122110019221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561055005110 + 60561055005111.

It is an arithmetic number, because the mean of its divisors is an integer number (60561055005111).

Almost surely, 2^{121122110010221} is an apocalyptic number.

It is an amenable number.

121122110010221 is a deficient number, since it is larger than the sum of its proper divisors (1).

121122110010221 is an equidigital number, since it uses as much as digits as its factorization.

121122110010221 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 17.

Adding to 121122110010221 its reverse (122010011221121), we get a palindrome (243132121231342).

The spelling of 121122110010221 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred ten million, ten thousand, two hundred twenty-one".