20222220001 has 4 divisors (see below), whose sum is σ = 21411762372. Its totient is φ = 19032677632.

The previous prime is 20222219971. The next prime is 20222220059. The reversal of 20222220001 is 10002222202.

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 17889330001 + 2332890000 = 133751^2 + 48300^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222220001 - 2⁹ = 20222219489 is a prime.

It is a super-5 number, since 5×20222220001⁵ (a number of 53 digits) contains 55555 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20222220061) 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, 594771160 + ... + 594771193.

It is an arithmetic number, because the mean of its divisors is an integer number (5352940593).

Almost surely, 2^20222220001 is an apocalyptic number.

It is an amenable number.

20222220001 is a deficient number, since it is larger than the sum of its proper divisors (1189542371).

20222220001 is a wasteful number, since it uses less digits than its factorization.

20222220001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189542370.

The product of its (nonzero) digits is 64, while the sum is 13.

Adding to 20222220001 its reverse (10002222202), we get a palindrome (30224442203).

The spelling of 20222220001 in words is "twenty billion, two hundred twenty-two million, two hundred twenty thousand, one".