1020221112195 has 48 divisors (see below), whose sum is σ = 1775866371552. Its totient is φ = 541816512000.

The previous prime is 1020221112187. The next prime is 1020221112199. The reversal of 1020221112195 is 5912111220201.

It is not a de Polignac number, because 1020221112195 - 2³ = 1020221112187 is a prime.

It is a super-2 number, since 2×1020221112195² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1020221112199) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60227767 + ... + 60244703.

It is an arithmetic number, because the mean of its divisors is an integer number (36997216074).

Almost surely, 2^{1020221112195} is an apocalyptic number.

1020221112195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020221112195 is a deficient number, since it is larger than the sum of its proper divisors (755645259357).

1020221112195 is a wasteful number, since it uses less digits than its factorization.

1020221112195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22532 (or 22529 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 27.

Adding to 1020221112195 its reverse (5912111220201), we get a palindrome (6932332332396).

The spelling of 1020221112195 in words is "one trillion, twenty billion, two hundred twenty-one million, one hundred twelve thousand, one hundred ninety-five".