1210120202221 has 8 divisors (see below), whose sum is σ = 1455783702080. Its totient is φ = 982653998688.

The previous prime is 1210120202201. The next prime is 1210120202231. The reversal of 1210120202221 is 1222020210121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1210120202221 - 2⁵ = 1210120202189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1210120202195 and 1210120202204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210120202201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4549323936 + ... + 4549324201.

It is an arithmetic number, because the mean of its divisors is an integer number (181972962760).

Almost surely, 2^{1210120202221} is an apocalyptic number.

It is an amenable number.

1210120202221 is a deficient number, since it is larger than the sum of its proper divisors (245663499859).

1210120202221 is an equidigital number, since it uses as much as digits as its factorization.

1210120202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9098648163.

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

Adding to 1210120202221 its reverse (1222020210121), we get a palindrome (2432140412342).

The spelling of 1210120202221 in words is "one trillion, two hundred ten billion, one hundred twenty million, two hundred two thousand, two hundred twenty-one".