2212210010221 has 4 divisors (see below), whose sum is σ = 2249705095200. Its totient is φ = 2174714925244.

The previous prime is 2212210010191. The next prime is 2212210010261. The reversal of 2212210010221 is 1220100122122.

It is a happy number.

2212210010221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2212210010221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2212210010195 and 2212210010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212210010261) 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, 18747542401 + ... + 18747542518.

It is an arithmetic number, because the mean of its divisors is an integer number (562426273800).

Almost surely, 2^{2212210010221} is an apocalyptic number.

It is an amenable number.

2212210010221 is a deficient number, since it is larger than the sum of its proper divisors (37495084979).

2212210010221 is an equidigital number, since it uses as much as digits as its factorization.

2212210010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37495084978.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2212210010221 its reverse (1220100122122), we get a palindrome (3432310132343).

The spelling of 2212210010221 in words is "two trillion, two hundred twelve billion, two hundred ten million, ten thousand, two hundred twenty-one".