1222001001111 has 8 divisors (see below), whose sum is σ = 1777456001664. Its totient is φ = 740606667320.

The previous prime is 1222001001101. The next prime is 1222001001121. The reversal of 1222001001111 is 1111001002221.

It is an interprime number because it is at equal distance from previous prime (1222001001101) and next prime (1222001001121).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222001001111 - 2⁵ = 1222001001079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222001001101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18515166651 + ... + 18515166716.

It is an arithmetic number, because the mean of its divisors is an integer number (222182000208).

Almost surely, 2^{1222001001111} is an apocalyptic number.

1222001001111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1222001001111 is a deficient number, since it is larger than the sum of its proper divisors (555455000553).

1222001001111 is a wasteful number, since it uses less digits than its factorization.

1222001001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37030333381.

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

Adding to 1222001001111 its reverse (1111001002221), we get a palindrome (2333002003332).

The spelling of 1222001001111 in words is "one trillion, two hundred twenty-two billion, one million, one thousand, one hundred eleven".