1020021222195 has 40 divisors (see below), whose sum is σ = 1873079651520. Its totient is φ = 530742741120.

The previous prime is 1020021222173. The next prime is 1020021222257. The reversal of 1020021222195 is 5912221200201.

It is a happy number.

It is not a de Polignac number, because 1020021222195 - 2¹⁰ = 1020021221171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30697675 + ... + 30730884.

It is an arithmetic number, because the mean of its divisors is an integer number (46826991288).

Almost surely, 2^{1020021222195} is an apocalyptic number.

1020021222195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020021222195 is a deficient number, since it is larger than the sum of its proper divisors (853058429325).

1020021222195 is an equidigital number, since it uses as much as digits as its factorization.

1020021222195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61428617 (or 61428608 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 1020021222195 its reverse (5912221200201), we get a palindrome (6932242422396).

The spelling of 1020021222195 in words is "one trillion, twenty billion, twenty-one million, two hundred twenty-two thousand, one hundred ninety-five".