113222202021 has 6 divisors (see below), whose sum is σ = 163543180710. Its totient is φ = 75481468008.

The previous prime is 113222202013. The next prime is 113222202059. The reversal of 113222202021 is 120202222311.

It can be written as a sum of positive squares in only one way, i.e., 67865981121 + 45356220900 = 260511^2 + 212970^2 .

It is not a de Polignac number, because 113222202021 - 2³ = 113222202013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113222201985 and 113222202003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113222202421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6290122326 + ... + 6290122343.

It is an arithmetic number, because the mean of its divisors is an integer number (27257196785).

Almost surely, 2^113222202021 is an apocalyptic number.

It is an amenable number.

113222202021 is a deficient number, since it is larger than the sum of its proper divisors (50320978689).

113222202021 is a wasteful number, since it uses less digits than its factorization.

113222202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12580244675 (or 12580244672 counting only the distinct ones).

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

Adding to 113222202021 its reverse (120202222311), we get a palindrome (233424424332).

The spelling of 113222202021 in words is "one hundred thirteen billion, two hundred twenty-two million, two hundred two thousand, twenty-one".