120211112209 has 2 divisors, whose sum is σ = 120211112210. Its totient is φ = 120211112208.

The previous prime is 120211112201. The next prime is 120211112237. The reversal of 120211112209 is 902211112021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118131752209 + 2079360000 = 343703^2 + 45600^2 .

It is a cyclic number.

It is not a de Polignac number, because 120211112209 - 2³ = 120211112201 is a prime.

It is a super-2 number, since 2×120211112209² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120211112209.

It is not a weakly prime, because it can be changed into another prime (120211112201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60105556104 + 60105556105.

It is an arithmetic number, because the mean of its divisors is an integer number (60105556105).

Almost surely, 2^120211112209 is an apocalyptic number.

It is an amenable number.

120211112209 is a deficient number, since it is larger than the sum of its proper divisors (1).

120211112209 is an equidigital number, since it uses as much as digits as its factorization.

120211112209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 120211112209 in words is "one hundred twenty billion, two hundred eleven million, one hundred twelve thousand, two hundred nine".