121202210223 has 20 divisors (see below), whose sum is σ = 181239458928. Its totient is φ = 80719221600.

The previous prime is 121202210221. The next prime is 121202210237. The reversal of 121202210223 is 322012202121.

It is not a de Polignac number, because 121202210223 - 2¹ = 121202210221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121202210196 and 121202210205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121202210221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 681478 + ... + 840723.

Almost surely, 2^121202210223 is an apocalyptic number.

121202210223 is a deficient number, since it is larger than the sum of its proper divisors (60037248705).

121202210223 is an equidigital number, since it uses as much as digits as its factorization.

121202210223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523196 (or 1523187 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 121202210223 its reverse (322012202121), we get a palindrome (443214412344).

The spelling of 121202210223 in words is "one hundred twenty-one billion, two hundred two million, two hundred ten thousand, two hundred twenty-three".