1020011112211 has 16 divisors (see below), whose sum is σ = 1256829859264. Its totient is φ = 806121465984.

The previous prime is 1020011112193. The next prime is 1020011112349. The reversal of 1020011112211 is 1122111100201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1020011112211 - 2⁵ = 1020011112179 is a prime.

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 = 1020011112191 and 1020011112200.

It is not an unprimeable number, because it can be changed into a prime (1020011113211) 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, 6310680 + ... + 6470293.

It is an arithmetic number, because the mean of its divisors is an integer number (78551866204).

Almost surely, 2^{1020011112211} is an apocalyptic number.

1020011112211 is a deficient number, since it is larger than the sum of its proper divisors (236818747053).

1020011112211 is a wasteful number, since it uses less digits than its factorization.

1020011112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781870.

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

Adding to 1020011112211 its reverse (1122111100201), we get a palindrome (2142122212412).

The spelling of 1020011112211 in words is "one trillion, twenty billion, eleven million, one hundred twelve thousand, two hundred eleven".