102022201221 has 4 divisors (see below), whose sum is σ = 136029601632. Its totient is φ = 68014800812.

The previous prime is 102022201111. The next prime is 102022201247. The reversal of 102022201221 is 122102220201.

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 a cyclic number.

It is not a de Polignac number, because 102022201221 - 2¹⁴ = 102022184837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102022201221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102022201261) by changing a digit.

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, 17003700201 + ... + 17003700206.

It is an arithmetic number, because the mean of its divisors is an integer number (34007400408).

Almost surely, 2^102022201221 is an apocalyptic number.

It is an amenable number.

102022201221 is a deficient number, since it is larger than the sum of its proper divisors (34007400411).

102022201221 is an equidigital number, since it uses as much as digits as its factorization.

102022201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34007400410.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 102022201221 its reverse (122102220201), we get a palindrome (224124421422).

The spelling of 102022201221 in words is "one hundred two billion, twenty-two million, two hundred one thousand, two hundred twenty-one".