1001200222222 has 16 divisors (see below), whose sum is σ = 1631837376000. Its totient is φ = 458954260920.

The previous prime is 1001200222193. The next prime is 1001200222237. The reversal of 1001200222222 is 2222220021001.

It is a junction number, because it is equal to n+sod(n) for n = 1001200222196 and 1001200222205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424956472 + ... + 424958827.

It is an arithmetic number, because the mean of its divisors is an integer number (101989836000).

Almost surely, 2^{1001200222222} is an apocalyptic number.

1001200222222 is a deficient number, since it is larger than the sum of its proper divisors (630637153778).

1001200222222 is a wasteful number, since it uses less digits than its factorization.

1001200222222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849915351.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 1001200222222 its reverse (2222220021001), we get a palindrome (3223420243223).

The spelling of 1001200222222 in words is "one trillion, one billion, two hundred million, two hundred twenty-two thousand, two hundred twenty-two".