1020221120195 has 8 divisors (see below), whose sum is σ = 1224316950480. Its totient is φ = 816142492000.

The previous prime is 1020221120153. The next prime is 1020221120201. The reversal of 1020221120195 is 5910211220201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020221120195 - 2²² = 1020216925891 is a prime.

It is a super-2 number, since 2×1020221120195² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4169681 + ... + 4407570.

It is an arithmetic number, because the mean of its divisors is an integer number (153039618810).

Almost surely, 2^{1020221120195} is an apocalyptic number.

1020221120195 is a deficient number, since it is larger than the sum of its proper divisors (204095830285).

1020221120195 is an equidigital number, since it uses as much as digits as its factorization.

1020221120195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8601045.

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

Adding to 1020221120195 its reverse (5910211220201), we get a palindrome (6930432340396).

The spelling of 1020221120195 in words is "one trillion, twenty billion, two hundred twenty-one million, one hundred twenty thousand, one hundred ninety-five".