122220202213 has 4 divisors (see below), whose sum is σ = 122221035328. Its totient is φ = 122219369100.

The previous prime is 122220202201. The next prime is 122220202243. The reversal of 122220202213 is 312202022221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 312202022221 = 743 ⋅420191147.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122220202213 is a prime.

It is a super-2 number, since 2×122220202213² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122220202243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131463 + ... + 511588.

It is an arithmetic number, because the mean of its divisors is an integer number (30555258832).

Almost surely, 2^122220202213 is an apocalyptic number.

It is an amenable number.

122220202213 is a deficient number, since it is larger than the sum of its proper divisors (833115).

122220202213 is an equidigital number, since it uses as much as digits as its factorization.

122220202213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833114.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 122220202213 its reverse (312202022221), we get a palindrome (434422224434).

The spelling of 122220202213 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred two thousand, two hundred thirteen".