122002001209 has 4 divisors (see below), whose sum is σ = 133093092240. Its totient is φ = 110910910180.

The previous prime is 122002001179. The next prime is 122002001239. The reversal of 122002001209 is 902100200221.

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 an interprime number because it is at equal distance from previous prime (122002001179) and next prime (122002001239).

It is a cyclic number.

It is not a de Polignac number, because 122002001209 - 2¹⁹ = 122001476921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122002001239) 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, 5545545499 + ... + 5545545520.

It is an arithmetic number, because the mean of its divisors is an integer number (33273273060).

Almost surely, 2^122002001209 is an apocalyptic number.

It is an amenable number.

122002001209 is a deficient number, since it is larger than the sum of its proper divisors (11091091031).

122002001209 is a wasteful number, since it uses less digits than its factorization.

122002001209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11091091030.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 122002001209 in words is "one hundred twenty-two billion, two million, one thousand, two hundred nine".