1011022201111 has 64 divisors (see below), whose sum is σ = 1183753605888. Its totient is φ = 855090782208.

The previous prime is 1011022201093. The next prime is 1011022201117. The reversal of 1011022201111 is 1111022201101.

It is a happy number.

It is not a de Polignac number, because 1011022201111 - 2⁷ = 1011022200983 is a prime.

It is a super-2 number, since 2×1011022201111² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 1011022201091 and 1011022201100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011022201117) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1028506326 + ... + 1028507308.

It is an arithmetic number, because the mean of its divisors is an integer number (18496150092).

Almost surely, 2^{1011022201111} is an apocalyptic number.

1011022201111 is a deficient number, since it is larger than the sum of its proper divisors (172731404777).

1011022201111 is a wasteful number, since it uses less digits than its factorization.

1011022201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1011022201111 its reverse (1111022201101), we get a palindrome (2122044402212).

The spelling of 1011022201111 in words is "one trillion, eleven billion, twenty-two million, two hundred one thousand, one hundred eleven".