221001101021202 has 8 divisors (see below), whose sum is σ = 442002202042416. Its totient is φ = 73667033673732.

The previous prime is 221001101021177. The next prime is 221001101021231. The reversal of 221001101021202 is 202120101100122.

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

221001101021202 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18416758418428 + ... + 18416758418439.

It is an arithmetic number, because the mean of its divisors is an integer number (55250275255302).

Almost surely, 2^{221001101021202} is an apocalyptic number.

221001101021202 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221001101021202 is a wasteful number, since it uses less digits than its factorization.

221001101021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36833516836872.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 221001101021202 its reverse (202120101100122), we get a palindrome (423121202121324).

The spelling of 221001101021202 in words is "two hundred twenty-one trillion, one billion, one hundred one million, twenty-one thousand, two hundred two".