1000212211222 has 32 divisors (see below), whose sum is σ = 1741581031680. Its totient is φ = 421939346400.

The previous prime is 1000212211217. The next prime is 1000212211247. The reversal of 1000212211222 is 2221122120001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1000212211196 and 1000212211205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 810529 + ... + 1630147.

It is an arithmetic number, because the mean of its divisors is an integer number (54424407240).

Almost surely, 2^{1000212211222} is an apocalyptic number.

1000212211222 is a deficient number, since it is larger than the sum of its proper divisors (741368820458).

1000212211222 is a wasteful number, since it uses less digits than its factorization.

1000212211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820996.

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

Adding to 1000212211222 its reverse (2221122120001), we get a palindrome (3221334331223).

The spelling of 1000212211222 in words is "one trillion, two hundred twelve million, two hundred eleven thousand, two hundred twenty-two".