20122122222001 has 8 divisors (see below), whose sum is σ = 21305881323360. Its totient is φ = 18938374771008.

The previous prime is 20122122221963. The next prime is 20122122222049. The reversal of 20122122222001 is 10022222122102.

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

It is a cyclic number.

It is not a de Polignac number, because 20122122222001 - 2⁹ = 20122122221489 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 20122122222001.

It is not an unprimeable number, because it can be changed into a prime (20122122222091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776890 + ... + 6391228.

It is an arithmetic number, because the mean of its divisors is an integer number (2663235165420).

Almost surely, 2^{20122122222001} is an apocalyptic number.

It is an amenable number.

20122122222001 is a deficient number, since it is larger than the sum of its proper divisors (1183759101359).

20122122222001 is a wasteful number, since it uses less digits than its factorization.

20122122222001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5825183.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20122122222001 its reverse (10022222122102), we get a palindrome (30144344344103).

The spelling of 20122122222001 in words is "twenty trillion, one hundred twenty-two billion, one hundred twenty-two million, two hundred twenty-two thousand, one".