122022021009 has 16 divisors (see below), whose sum is σ = 186629546880. Its totient is φ = 69467658240.

The previous prime is 122022020969. The next prime is 122022021041. The reversal of 122022021009 is 900120220221.

It is a happy number.

It is not a de Polignac number, because 122022021009 - 2⁷ = 122022020881 is a prime.

It is a super-2 number, since 2×122022021009² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (122022001009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10794672 + ... + 10805969.

It is an arithmetic number, because the mean of its divisors is an integer number (11664346680).

Almost surely, 2^122022021009 is an apocalyptic number.

It is an amenable number.

122022021009 is a deficient number, since it is larger than the sum of its proper divisors (64607525871).

122022021009 is a wasteful number, since it uses less digits than its factorization.

122022021009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21600920.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 122022021009 in words is "one hundred twenty-two billion, twenty-two million, twenty-one thousand, nine".