202221019973 has 8 divisors (see below), whose sum is σ = 233894192448. Its totient is φ = 171243961344.

The previous prime is 202221019961. The next prime is 202221019981. The reversal of 202221019973 is 379910122202.

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

It is a cyclic number.

It is not a de Polignac number, because 202221019973 - 2¹⁸ = 202220757829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202221016973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 174027836 + ... + 174028997.

It is an arithmetic number, because the mean of its divisors is an integer number (29236774056).

Almost surely, 2^202221019973 is an apocalyptic number.

It is an amenable number.

202221019973 is a deficient number, since it is larger than the sum of its proper divisors (31673172475).

202221019973 is an equidigital number, since it uses as much as digits as its factorization.

202221019973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348056923.

The product of its (nonzero) digits is 27216, while the sum is 38.

The spelling of 202221019973 in words is "two hundred two billion, two hundred twenty-one million, nineteen thousand, nine hundred seventy-three".