101221202023 has 2 divisors, whose sum is σ = 101221202024. Its totient is φ = 101221202022.

The previous prime is 101221201943. The next prime is 101221202039. The reversal of 101221202023 is 320202122101.

It is a happy number.

It is an a-pointer prime, because the next prime (101221202039) can be obtained adding 101221202023 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101221202023 - 2²⁵ = 101187647591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101221201988 and 101221202006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101221202083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610601011 + 50610601012.

It is an arithmetic number, because the mean of its divisors is an integer number (50610601012).

Almost surely, 2^101221202023 is an apocalyptic number.

101221202023 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221202023 is an equidigital number, since it uses as much as digits as its factorization.

101221202023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 101221202023 its reverse (320202122101), we get a palindrome (421423324124).

The spelling of 101221202023 in words is "one hundred one billion, two hundred twenty-one million, two hundred two thousand, twenty-three".