1020000220111 has 4 divisors (see below), whose sum is σ = 1064348055792. Its totient is φ = 975652384432.

The previous prime is 1020000220037. The next prime is 1020000220171. The reversal of 1020000220111 is 1110220000201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1020000220111 - 2⁷ = 1020000219983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020000220171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22173917806 + ... + 22173917851.

It is an arithmetic number, because the mean of its divisors is an integer number (266087013948).

Almost surely, 2^{1020000220111} is an apocalyptic number.

1020000220111 is a deficient number, since it is larger than the sum of its proper divisors (44347835681).

1020000220111 is an equidigital number, since it uses as much as digits as its factorization.

1020000220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44347835680.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1020000220111 its reverse (1110220000201), we get a palindrome (2130220220312).

The spelling of 1020000220111 in words is "one trillion, twenty billion, two hundred twenty thousand, one hundred eleven".