1020112020221 has 16 divisors (see below), whose sum is σ = 1196084483328. Its totient is φ = 851764636800.

The previous prime is 1020112020209. The next prime is 1020112020283. The reversal of 1020112020221 is 1220202110201.

It is not a de Polignac number, because 1020112020221 - 2¹⁰ = 1020112019197 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1020112020196 and 1020112020205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020112025221) 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, 2498945 + ... + 2878358.

It is an arithmetic number, because the mean of its divisors is an integer number (74755280208).

Almost surely, 2^{1020112020221} is an apocalyptic number.

It is an amenable number.

1020112020221 is a deficient number, since it is larger than the sum of its proper divisors (175972463107).

1020112020221 is an equidigital number, since it uses as much as digits as its factorization.

1020112020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5378012.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1020112020221 its reverse (1220202110201), we get a palindrome (2240314130422).

The spelling of 1020112020221 in words is "one trillion, twenty billion, one hundred twelve million, twenty thousand, two hundred twenty-one".