20022210212 has 6 divisors (see below), whose sum is σ = 35038867878. Its totient is φ = 10011105104.

The previous prime is 20022210211. The next prime is 20022210227. The reversal of 20022210212 is 21201222002.

It can be written as a sum of positive squares in only one way, i.e., 15379968256 + 4642241956 = 124016^2 + 68134^2 .

It is not an unprimeable number, because it can be changed into a prime (20022210211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2502776273 + ... + 2502776280.

It is an arithmetic number, because the mean of its divisors is an integer number (5839811313).

Almost surely, 2^20022210212 is an apocalyptic number.

It is an amenable number.

20022210212 is a deficient number, since it is larger than the sum of its proper divisors (15016657666).

20022210212 is a wasteful number, since it uses less digits than its factorization.

20022210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5005552557 (or 5005552555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20022210212 its reverse (21201222002), we get a palindrome (41223432214).

The spelling of 20022210212 in words is "twenty billion, twenty-two million, two hundred ten thousand, two hundred twelve".