121122022211 has 2 divisors, whose sum is σ = 121122022212. Its totient is φ = 121122022210.

The previous prime is 121122022207. The next prime is 121122022223. The reversal of 121122022211 is 112220221121.

It is a weak prime.

It is an emirp because it is prime and its reverse (112220221121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121122022211 - 2² = 121122022207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121122022211.

It is not a weakly prime, because it can be changed into another prime (121122022201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60561011105 + 60561011106.

It is an arithmetic number, because the mean of its divisors is an integer number (60561011106).

Almost surely, 2^121122022211 is an apocalyptic number.

121122022211 is a deficient number, since it is larger than the sum of its proper divisors (1).

121122022211 is an equidigital number, since it uses as much as digits as its factorization.

121122022211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 121122022211 its reverse (112220221121), we get a palindrome (233342243332).

The spelling of 121122022211 in words is "one hundred twenty-one billion, one hundred twenty-two million, twenty-two thousand, two hundred eleven".