122111202209 has 4 divisors (see below), whose sum is σ = 126050273280. Its totient is φ = 118172131140.

The previous prime is 122111202179. The next prime is 122111202211. The reversal of 122111202209 is 902202111221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 122111202209 - 2¹² = 122111198113 is a prime.

It is a super-2 number, since 2×122111202209² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122111202299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969535489 + ... + 1969535550.

It is an arithmetic number, because the mean of its divisors is an integer number (31512568320).

Almost surely, 2^122111202209 is an apocalyptic number.

It is an amenable number.

122111202209 is a deficient number, since it is larger than the sum of its proper divisors (3939071071).

122111202209 is an equidigital number, since it uses as much as digits as its factorization.

122111202209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3939071070.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 122111202209 in words is "one hundred twenty-two billion, one hundred eleven million, two hundred two thousand, two hundred nine".