101022111 has 6 divisors (see below), whose sum is σ = 145920840. Its totient is φ = 67348068.

The previous prime is 101022083. The next prime is 101022169. The reversal of 101022111 is 111220101.

It is a happy number.

It is not a de Polignac number, because 101022111 - 2²² = 96827807 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11224679 = 101022111 / (1 + 0 + 1 + 0 + 2 + 2 + 1 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 101022093 and 101022102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5612331 + ... + 5612348.

It is an arithmetic number, because the mean of its divisors is an integer number (24320140).

Almost surely, 2^101022111 is an apocalyptic number.

101022111 is a deficient number, since it is larger than the sum of its proper divisors (44898729).

101022111 is a wasteful number, since it uses less digits than its factorization.

101022111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11224685 (or 11224682 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 101022111 is about 10050.9756242864. The cubic root of 101022111 is about 465.7349321744.

Adding to 101022111 its reverse (111220101), we get a palindrome (212242212).

It can be divided in two parts, 10 and 1022111, that added together give a square (1022121 = 1011²).

The spelling of 101022111 in words is "one hundred one million, twenty-two thousand, one hundred eleven".