212021011222 has 8 divisors (see below), whose sum is σ = 322388113176. Its totient is φ = 104558306832.

The previous prime is 212021011177. The next prime is 212021011259. The reversal of 212021011222 is 222110120212.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 212021011196 and 212021011205.

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, 726099208 + ... + 726099499.

It is an arithmetic number, because the mean of its divisors is an integer number (40298514147).

Almost surely, 2^212021011222 is an apocalyptic number.

212021011222 is a deficient number, since it is larger than the sum of its proper divisors (110367101954).

212021011222 is a wasteful number, since it uses less digits than its factorization.

212021011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1452198782.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 212021011222 its reverse (222110120212), we get a palindrome (434131131434).

The spelling of 212021011222 in words is "two hundred twelve billion, twenty-one million, eleven thousand, two hundred twenty-two".