20022212 has 24 divisors (see below), whose sum is σ = 40246080. Its totient is φ = 8537760.

The previous prime is 20022203. The next prime is 20022229. The reversal of 20022212 is 21222002.

It is a junction number, because it is equal to n+sod(n) for n = 20022193 and 20022202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4214 + ... + 7602.

It is an arithmetic number, because the mean of its divisors is an integer number (1676920).

Almost surely, 2^20022212 is an apocalyptic number.

It is an amenable number.

20022212 is an abundant number, since it is smaller than the sum of its proper divisors (20223868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20022212 is a wasteful number, since it uses less digits than its factorization.

20022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611 (or 3609 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 20022212 is about 4474.6186429684. The cubic root of 20022212 is about 271.5422122220.

Adding to 20022212 its reverse (21222002), we get a palindrome (41244214).

The spelling of 20022212 in words is "twenty million, twenty-two thousand, two hundred twelve".