20203220222 has 4 divisors (see below), whose sum is σ = 30304830336. Its totient is φ = 10101610110.

The previous prime is 20203220179. The next prime is 20203220269. The reversal of 20203220222 is 22202230202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22202230202 = 2 ⋅11101115101.

It is a self number, because there is not a number n which added to its sum of digits gives 20203220222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050805054 + ... + 5050805057.

It is an arithmetic number, because the mean of its divisors is an integer number (7576207584).

Almost surely, 2^20203220222 is an apocalyptic number.

20203220222 is a deficient number, since it is larger than the sum of its proper divisors (10101610114).

20203220222 is a wasteful number, since it uses less digits than its factorization.

20203220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101610113.

The product of its (nonzero) digits is 384, while the sum is 17.

Adding to 20203220222 its reverse (22202230202), we get a palindrome (42405450424).

The spelling of 20203220222 in words is "twenty billion, two hundred three million, two hundred twenty thousand, two hundred twenty-two".