1111022001001 has 16 divisors (see below), whose sum is σ = 1283531194368. Its totient is φ = 950450272000.

The previous prime is 1111022000981. The next prime is 1111022001079. The reversal of 1111022001001 is 1001002201111.

It is a cyclic number.

It is not a de Polignac number, because 1111022001001 - 2⁵ = 1111022000969 is a prime.

It is a super-3 number, since 3×1111022001001³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111022001101) 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, 653976 + ... + 1627798.

It is an arithmetic number, because the mean of its divisors is an integer number (80220699648).

Almost surely, 2^{1111022001001} is an apocalyptic number.

1111022001001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1111022001001 is a deficient number, since it is larger than the sum of its proper divisors (172509193367).

1111022001001 is a wasteful number, since it uses less digits than its factorization.

1111022001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979952.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 1111022001001 its reverse (1001002201111), we get a palindrome (2112024202112).

The spelling of 1111022001001 in words is "one trillion, one hundred eleven billion, twenty-two million, one thousand, one".