20022211201 has 4 divisors (see below), whose sum is σ = 20023703812. Its totient is φ = 20020718592.

The previous prime is 20022211189. The next prime is 20022211207. The reversal of 20022211201 is 10211222002.

It is a happy number.

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 10501330576 + 9520880625 = 102476^2 + 97575^2 .

It is a cyclic number.

It is not a de Polignac number, because 20022211201 - 2⁷ = 20022211073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20022211207) 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, 726000 + ... + 753073.

It is an arithmetic number, because the mean of its divisors is an integer number (5005925953).

Almost surely, 2^20022211201 is an apocalyptic number.

It is an amenable number.

20022211201 is a deficient number, since it is larger than the sum of its proper divisors (1492611).

20022211201 is a wasteful number, since it uses less digits than its factorization.

20022211201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492610.

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

Adding to 20022211201 its reverse (10211222002), we get a palindrome (30233433203).

The spelling of 20022211201 in words is "twenty billion, twenty-two million, two hundred eleven thousand, two hundred one".