102220132243 has 4 divisors (see below), whose sum is σ = 103000438728. Its totient is φ = 101439825760.

The previous prime is 102220132219. The next prime is 102220132387. The reversal of 102220132243 is 342231022201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 342231022201 = 259397 ⋅1319333.

It is a cyclic number.

It is not a de Polignac number, because 102220132243 - 2²⁵ = 102186577811 is a prime.

It is a super-2 number, since 2×102220132243² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102220139243) 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, 390153046 + ... + 390153307.

It is an arithmetic number, because the mean of its divisors is an integer number (25750109682).

Almost surely, 2^102220132243 is an apocalyptic number.

102220132243 is a deficient number, since it is larger than the sum of its proper divisors (780306485).

102220132243 is an equidigital number, since it uses as much as digits as its factorization.

102220132243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 780306484.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 102220132243 its reverse (342231022201), we get a palindrome (444451154444).

The spelling of 102220132243 in words is "one hundred two billion, two hundred twenty million, one hundred thirty-two thousand, two hundred forty-three".