212220012122 has 8 divisors (see below), whose sum is σ = 323725442400. Its totient is φ = 104311531324.

The previous prime is 212220012097. The next prime is 212220012149. The reversal of 212220012122 is 221210022212.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 212220012122.

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, 899237222 + ... + 899237457.

It is an arithmetic number, because the mean of its divisors is an integer number (40465680300).

Almost surely, 2^212220012122 is an apocalyptic number.

212220012122 is a deficient number, since it is larger than the sum of its proper divisors (111505430278).

212220012122 is a wasteful number, since it uses less digits than its factorization.

212220012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1798474740.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 212220012122 its reverse (221210022212), we get a palindrome (433430034334).

The spelling of 212220012122 in words is "two hundred twelve billion, two hundred twenty million, twelve thousand, one hundred twenty-two".