1000011111222 has 64 divisors (see below), whose sum is σ = 2089443755520. Its totient is φ = 318783838464.

The previous prime is 1000011111167. The next prime is 1000011111223. The reversal of 1000011111222 is 2221111100001.

It is a junction number, because it is equal to n+sod(n) for n = 1000011111198 and 1000011111207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000011111223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6584154 + ... + 6734322.

It is an arithmetic number, because the mean of its divisors is an integer number (32647558680).

Almost surely, 2^{1000011111222} is an apocalyptic number.

1000011111222 is an abundant number, since it is smaller than the sum of its proper divisors (1089432644298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000011111222 is a wasteful number, since it uses less digits than its factorization.

1000011111222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150757.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1000011111222 its reverse (2221111100001), we get a palindrome (3221122211223).

The spelling of 1000011111222 in words is "one trillion, eleven million, one hundred eleven thousand, two hundred twenty-two".