212120001011222 has 12 divisors (see below), whose sum is σ = 335807702433036. Its totient is φ = 100477895215500.

The previous prime is 212120001011173. The next prime is 212120001011227. The reversal of 212120001011222 is 222110100021212.

It is a self number, because there is not a number n which added to its sum of digits gives 212120001011222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212120001011227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 146897506904 + ... + 146897508347.

It is an arithmetic number, because the mean of its divisors is an integer number (27983975202753).

Almost surely, 2^{212120001011222} is an apocalyptic number.

212120001011222 is a deficient number, since it is larger than the sum of its proper divisors (123687701421814).

212120001011222 is a wasteful number, since it uses less digits than its factorization.

212120001011222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293795015291 (or 293795015272 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212120001011222 its reverse (222110100021212), we get a palindrome (434230101032434).

The spelling of 212120001011222 in words is "two hundred twelve trillion, one hundred twenty billion, one million, eleven thousand, two hundred twenty-two".