20022212021212 has 12 divisors (see below), whose sum is σ = 36562300212816. Its totient is φ = 9575840531840.

The previous prime is 20022212021083. The next prime is 20022212021261. The reversal of 20022212021212 is 21212021222002.

It is a self number, because there is not a number n which added to its sum of digits gives 20022212021212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108816369589 + ... + 108816369772.

It is an arithmetic number, because the mean of its divisors is an integer number (3046858351068).

Almost surely, 2^{20022212021212} is an apocalyptic number.

It is an amenable number.

20022212021212 is a deficient number, since it is larger than the sum of its proper divisors (16540088191604).

20022212021212 is a wasteful number, since it uses less digits than its factorization.

20022212021212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217632739388 (or 217632739386 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 20022212021212 its reverse (21212021222002), we get a palindrome (41234233243214).

The spelling of 20022212021212 in words is "twenty trillion, twenty-two billion, two hundred twelve million, twenty-one thousand, two hundred twelve".