1021120220195 has 16 divisors (see below), whose sum is σ = 1254079819872. Its totient is φ = 797746387200.

The previous prime is 1021120220173. The next prime is 1021120220207. The reversal of 1021120220195 is 5910220211201.

1021120220195 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021120220195 - 2⁸ = 1021120219939 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683345 + ... + 1584045.

It is an arithmetic number, because the mean of its divisors is an integer number (78379988742).

Almost surely, 2^{1021120220195} is an apocalyptic number.

1021120220195 is a deficient number, since it is larger than the sum of its proper divisors (232959599677).

1021120220195 is an equidigital number, since it uses as much as digits as its factorization.

1021120220195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906022.

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 1021120220195 its reverse (5910220211201), we get a palindrome (6931340431396).

The spelling of 1021120220195 in words is "one trillion, twenty-one billion, one hundred twenty million, two hundred twenty thousand, one hundred ninety-five".