1020200220111 has 16 divisors (see below), whose sum is σ = 1378837635840. Its totient is φ = 670874117760.

The previous prime is 1020200220103. The next prime is 1020200220163. The reversal of 1020200220111 is 1110220020201.

It is not a de Polignac number, because 1020200220111 - 2³ = 1020200220103 is a prime.

It is a super-3 number, since 3×1020200220111³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020204220111) 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, 3089466 + ... + 3403703.

It is an arithmetic number, because the mean of its divisors is an integer number (86177352240).

Almost surely, 2^{1020200220111} is an apocalyptic number.

1020200220111 is a deficient number, since it is larger than the sum of its proper divisors (358637415729).

1020200220111 is an equidigital number, since it uses as much as digits as its factorization.

1020200220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493886.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1020200220111 its reverse (1110220020201), we get a palindrome (2130420240312).

The spelling of 1020200220111 in words is "one trillion, twenty billion, two hundred million, two hundred twenty thousand, one hundred eleven".