102200112101221 has 4 divisors (see below), whose sum is σ = 102318536333952. Its totient is φ = 102081687868492.

The previous prime is 102200112101203. The next prime is 102200112101293. The reversal of 102200112101221 is 122101211002201.

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 102200112101221 - 2²³ = 102200103712613 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102200112101195 and 102200112101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102200142101221) 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, 59212115071 + ... + 59212116796.

It is an arithmetic number, because the mean of its divisors is an integer number (25579634083488).

Almost surely, 2^{102200112101221} is an apocalyptic number.

It is an amenable number.

102200112101221 is a deficient number, since it is larger than the sum of its proper divisors (118424232731).

102200112101221 is an equidigital number, since it uses as much as digits as its factorization.

102200112101221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118424232730.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 102200112101221 its reverse (122101211002201), we get a palindrome (224301323103422).

The spelling of 102200112101221 in words is "one hundred two trillion, two hundred billion, one hundred twelve million, one hundred one thousand, two hundred twenty-one".