102030222101 has 4 divisors (see below), whose sum is σ = 102032282412. Its totient is φ = 102028161792.

The previous prime is 102030222089. The next prime is 102030222149. The reversal of 102030222101 is 101222030201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101222030201 = 1777 ⋅56962313.

It can be written as a sum of positive squares in 2 ways, for example, as 47241457201 + 54788764900 = 217351^2 + 234070^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102030222101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102030252101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953996 + ... + 1055541.

It is an arithmetic number, because the mean of its divisors is an integer number (25508070603).

Almost surely, 2^102030222101 is an apocalyptic number.

It is an amenable number.

102030222101 is a deficient number, since it is larger than the sum of its proper divisors (2060311).

102030222101 is an equidigital number, since it uses as much as digits as its factorization.

102030222101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060310.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 102030222101 its reverse (101222030201), we get a palindrome (203252252302).

The spelling of 102030222101 in words is "one hundred two billion, thirty million, two hundred twenty-two thousand, one hundred one".