212100101011222 has 4 divisors (see below), whose sum is σ = 318150151516836. Its totient is φ = 106050050505610.

The previous prime is 212100101011181. The next prime is 212100101011247. The reversal of 212100101011222 is 222110101001212.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 212100101011196 and 212100101011205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53025025252804 + ... + 53025025252807.

It is an arithmetic number, because the mean of its divisors is an integer number (79537537879209).

Almost surely, 2^{212100101011222} is an apocalyptic number.

212100101011222 is a deficient number, since it is larger than the sum of its proper divisors (106050050505614).

212100101011222 is a wasteful number, since it uses less digits than its factorization.

212100101011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106050050505613.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212100101011222 its reverse (222110101001212), we get a palindrome (434210202012434).

The spelling of 212100101011222 in words is "two hundred twelve trillion, one hundred billion, one hundred one million, eleven thousand, two hundred twenty-two".