201010022022221 has 4 divisors (see below), whose sum is σ = 201201277990944. Its totient is φ = 200818766053500.

The previous prime is 201010022022203. The next prime is 201010022022239. The reversal of 201010022022221 is 122220220010102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (201010022022203) and next prime (201010022022239).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201010022022221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201010022022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201010022012221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95627982785 + ... + 95627984886.

It is an arithmetic number, because the mean of its divisors is an integer number (50300319497736).

Almost surely, 2^{201010022022221} is an apocalyptic number.

It is an amenable number.

201010022022221 is a deficient number, since it is larger than the sum of its proper divisors (191255968723).

201010022022221 is a wasteful number, since it uses less digits than its factorization.

201010022022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191255968722.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 201010022022221 its reverse (122220220010102), we get a palindrome (323230242032323).

The spelling of 201010022022221 in words is "two hundred one trillion, ten billion, twenty-two million, twenty-two thousand, two hundred twenty-one".