20202222212 has 24 divisors (see below), whose sum is σ = 36283922136. Its totient is φ = 9838170368.

The previous prime is 20202222193. The next prime is 20202222217. The reversal of 20202222212 is 21222220202.

It can be written as a sum of positive squares in 4 ways, for example, as 2538748996 + 17663473216 = 50386^2 + 132904^2 .

It is not an unprimeable number, because it can be changed into a prime (20202222217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318743 + ... + 376830.

It is an arithmetic number, because the mean of its divisors is an integer number (1511830089).

Almost surely, 2^20202222212 is an apocalyptic number.

It is an amenable number.

20202222212 is a deficient number, since it is larger than the sum of its proper divisors (16081699924).

20202222212 is a wasteful number, since it uses less digits than its factorization.

20202222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695767 (or 695765 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 20202222212 its reverse (21222220202), we get a palindrome (41424442414).

The spelling of 20202222212 in words is "twenty billion, two hundred two million, two hundred twenty-two thousand, two hundred twelve".