20222111122001 has 4 divisors (see below), whose sum is σ = 21411647070372. Its totient is φ = 19032575173632.

The previous prime is 20222111121959. The next prime is 20222111122021. The reversal of 20222111122001 is 10022111122202.

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 6061370140225 + 14160740981776 = 2461985^2 + 3763076^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222111122001 - 2³⁴ = 20204931252817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 1189535948353 = 20222111122001 / (2 + 0 + 2 + 2 + 2 + 1 + 1 + 1 + 1 + 2 + 2 + 0 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20222111122021) 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, 594767974160 + ... + 594767974193.

It is an arithmetic number, because the mean of its divisors is an integer number (5352911767593).

Almost surely, 2^{20222111122001} is an apocalyptic number.

It is an amenable number.

20222111122001 is a deficient number, since it is larger than the sum of its proper divisors (1189535948371).

20222111122001 is a wasteful number, since it uses less digits than its factorization.

20222111122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189535948370.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 20222111122001 its reverse (10022111122202), we get a palindrome (30244222244203).

The spelling of 20222111122001 in words is "twenty trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twenty-two thousand, one".