2021221000195 has 8 divisors (see below), whose sum is σ = 2465226925200. Its totient is φ = 1590468983520.

The previous prime is 2021221000151. The next prime is 2021221000223. The reversal of 2021221000195 is 5910001221202.

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

It is not a de Polignac number, because 2021221000195 - 2⁷ = 2021221000067 is a prime.

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, 3313476745 + ... + 3313477354.

It is an arithmetic number, because the mean of its divisors is an integer number (308153365650).

Almost surely, 2^{2021221000195} is an apocalyptic number.

2021221000195 is a deficient number, since it is larger than the sum of its proper divisors (444005925005).

2021221000195 is an equidigital number, since it uses as much as digits as its factorization.

2021221000195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6626954165.

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 2021221000195 its reverse (5910001221202), we get a palindrome (7931222221397).

The spelling of 2021221000195 in words is "two trillion, twenty-one billion, two hundred twenty-one million, one hundred ninety-five", and thus it is an aban number.