1020110221111 has 8 divisors (see below), whose sum is σ = 1033535328320. Its totient is φ = 1006697922048.

The previous prime is 1020110221093. The next prime is 1020110221147. The reversal of 1020110221111 is 1111220110201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020110221111 is a prime.

It is a super-4 number, since 4×1020110221111⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020110221091 and 1020110221100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020110221211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3041646 + ... + 3360331.

It is an arithmetic number, because the mean of its divisors is an integer number (129191916040).

Almost surely, 2^{1020110221111} is an apocalyptic number.

1020110221111 is a deficient number, since it is larger than the sum of its proper divisors (13425107209).

1020110221111 is an equidigital number, since it uses as much as digits as its factorization.

1020110221111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6404073.

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

Adding to 1020110221111 its reverse (1111220110201), we get a palindrome (2131330331312).

The spelling of 1020110221111 in words is "one trillion, twenty billion, one hundred ten million, two hundred twenty-one thousand, one hundred eleven".