1010021010111 has 6 divisors (see below), whose sum is σ = 1458919236840. Its totient is φ = 673347340068.

The previous prime is 1010021010079. The next prime is 1010021010191. The reversal of 1010021010111 is 1110101200101.

It is not a de Polignac number, because 1010021010111 - 2⁵ = 1010021010079 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: 112224556679 = 1010021010111 / (1 + 0 + 1 + 0 + 0 + 2 + 1 + 0 + 1 + 0 + 1 + 1 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 1010021010093 and 1010021010102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010021010191) 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, 56112278331 + ... + 56112278348.

It is an arithmetic number, because the mean of its divisors is an integer number (243153206140).

Almost surely, 2^{1010021010111} is an apocalyptic number.

1010021010111 is a deficient number, since it is larger than the sum of its proper divisors (448898226729).

1010021010111 is a wasteful number, since it uses less digits than its factorization.

1010021010111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112224556685 (or 112224556682 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 1010021010111 its reverse (1110101200101), we get a palindrome (2120122210212).

The spelling of 1010021010111 in words is "one trillion, ten billion, twenty-one million, ten thousand, one hundred eleven".