20121212022 has 8 divisors (see below), whose sum is σ = 40242424056. Its totient is φ = 6707070672.

The previous prime is 20121212011. The next prime is 20121212099. The reversal of 20121212022 is 22021212102.

It is a sphenic number, since it is the product of 3 distinct primes.

20121212022 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 20121211992 and 20121212010.

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, 1676767663 + ... + 1676767674.

It is an arithmetic number, because the mean of its divisors is an integer number (5030303007).

Almost surely, 2^20121212022 is an apocalyptic number.

20121212022 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20121212022 is a wasteful number, since it uses less digits than its factorization.

20121212022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3353535342.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20121212022 its reverse (22021212102), we get a palindrome (42142424124).

The spelling of 20121212022 in words is "twenty billion, one hundred twenty-one million, two hundred twelve thousand, twenty-two".