121022211239 has 2 divisors, whose sum is σ = 121022211240. Its totient is φ = 121022211238.

The previous prime is 121022211203. The next prime is 121022211241. The reversal of 121022211239 is 932112220121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121022211239 is a prime.

It is a super-2 number, since 2×121022211239² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 121022211241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121022211839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60511105619 + 60511105620.

It is an arithmetic number, because the mean of its divisors is an integer number (60511105620).

Almost surely, 2^121022211239 is an apocalyptic number.

121022211239 is a deficient number, since it is larger than the sum of its proper divisors (1).

121022211239 is an equidigital number, since it uses as much as digits as its factorization.

121022211239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 121022211239 in words is "one hundred twenty-one billion, twenty-two million, two hundred eleven thousand, two hundred thirty-nine".