212211021022222 has 8 divisors (see below), whose sum is σ = 318320912595672. Its totient is φ = 106104050157000.

The previous prime is 212211021022139. The next prime is 212211021022249. The reversal of 212211021022222 is 222220120112212.

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 = 212211021022193 and 212211021022202.

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, 729995404 + ... + 730286047.

It is an arithmetic number, because the mean of its divisors is an integer number (39790114074459).

Almost surely, 2^{212211021022222} is an apocalyptic number.

212211021022222 is a deficient number, since it is larger than the sum of its proper divisors (106109891573450).

212211021022222 is a wasteful number, since it uses less digits than its factorization.

212211021022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460354114.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 212211021022222 its reverse (222220120112212), we get a palindrome (434431141134434).

The spelling of 212211021022222 in words is "two hundred twelve trillion, two hundred eleven billion, twenty-one million, twenty-two thousand, two hundred twenty-two".