10100220111 has 6 divisors (see below), whose sum is σ = 14589206840. Its totient is φ = 6733480068.

The previous prime is 10100220059. The next prime is 10100220131. The reversal of 10100220111 is 11102200101.

It is a happy number.

It is not a de Polignac number, because 10100220111 - 2¹⁷ = 10100089039 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: 1122246679 = 10100220111 / (1 + 0 + 1 + 0 + 0 + 2 + 2 + 0 + 1 + 1 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10100220093 and 10100220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10100220131) 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, 561123331 + ... + 561123348.

Almost surely, 2^10100220111 is an apocalyptic number.

10100220111 is a deficient number, since it is larger than the sum of its proper divisors (4488986729).

10100220111 is a wasteful number, since it uses less digits than its factorization.

10100220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122246685 (or 1122246682 counting only the distinct ones).

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

Adding to 10100220111 its reverse (11102200101), we get a palindrome (21202420212).

It can be divided in two parts, 10 and 100220111, that added together give a square (100220121 = 10011²).

The spelling of 10100220111 in words is "ten billion, one hundred million, two hundred twenty thousand, one hundred eleven".