1001022222111 has 16 divisors (see below), whose sum is σ = 1380850498560. Its totient is φ = 644275386720.

The previous prime is 1001022222077. The next prime is 1001022222121. The reversal of 1001022222111 is 1112222201001.

It is not a de Polignac number, because 1001022222111 - 2⁶ = 1001022222047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001022222121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394746 + ... + 1468968.

It is an arithmetic number, because the mean of its divisors is an integer number (86303156160).

Almost surely, 2^{1001022222111} is an apocalyptic number.

1001022222111 is a deficient number, since it is larger than the sum of its proper divisors (379828276449).

1001022222111 is a wasteful number, since it uses less digits than its factorization.

1001022222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084966.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1001022222111 its reverse (1112222201001), we get a palindrome (2113244423112).

The spelling of 1001022222111 in words is "one trillion, one billion, twenty-two million, two hundred twenty-two thousand, one hundred eleven".