1001002211222 has 32 divisors (see below), whose sum is σ = 1648903731552. Its totient is φ = 452901406464.

The previous prime is 1001002211219. The next prime is 1001002211317. The reversal of 1001002211222 is 2221122001001.

It is a junction number, because it is equal to n+sod(n) for n = 1001002211197 and 1001002211206.

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, 1329698 + ... + 1941674.

It is an arithmetic number, because the mean of its divisors is an integer number (51528241611).

Almost surely, 2^{1001002211222} is an apocalyptic number.

1001002211222 is a deficient number, since it is larger than the sum of its proper divisors (647901520330).

1001002211222 is a wasteful number, since it uses less digits than its factorization.

1001002211222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613232.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1001002211222 its reverse (2221122001001), we get a palindrome (3222124212223).

The spelling of 1001002211222 in words is "one trillion, one billion, two million, two hundred eleven thousand, two hundred twenty-two".