20122100122 has 8 divisors (see below), whose sum is σ = 30186812916. Its totient is φ = 10059829152.

The previous prime is 20122100113. The next prime is 20122100129. The reversal of 20122100122 is 22100122102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19113339001 + 1008761121 = 138251^2 + 31761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20122100129) 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, 589713 + ... + 622900.

Almost surely, 2^20122100122 is an apocalyptic number.

20122100122 is a deficient number, since it is larger than the sum of its proper divisors (10064712794).

20122100122 is a wasteful number, since it uses less digits than its factorization.

20122100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1220912.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20122100122 its reverse (22100122102), we get a palindrome (42222222224).

The spelling of 20122100122 in words is "twenty billion, one hundred twenty-two million, one hundred thousand, one hundred twenty-two".