122120000022109 has 4 divisors (see below), whose sum is σ = 126331034505660. Its totient is φ = 117908965538560.

The previous prime is 122120000022079. The next prime is 122120000022169. The reversal of 122120000022109 is 901220000021221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 37992985184025 + 84127014838084 = 6163845^2 + 9172078^2 .

It is a cyclic number.

It is not a de Polignac number, because 122120000022109 - 2¹³ = 122120000013917 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122120000022109.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122120000022169) 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, 2105517241732 + ... + 2105517241789.

It is an arithmetic number, because the mean of its divisors is an integer number (31582758626415).

Almost surely, 2^{122120000022109} is an apocalyptic number.

It is an amenable number.

122120000022109 is a deficient number, since it is larger than the sum of its proper divisors (4211034483551).

122120000022109 is an equidigital number, since it uses as much as digits as its factorization.

122120000022109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211034483550.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 122120000022109 in words is "one hundred twenty-two trillion, one hundred twenty billion, twenty-two thousand, one hundred nine".