1220210120221 has 8 divisors (see below), whose sum is σ = 1244000941920. Its totient is φ = 1196447742672.

The previous prime is 1220210120159. The next prime is 1220210120267.

It is a happy number.

1220210120221 is nontrivially palindromic in base 10.

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 1220210120221 - 2⁷ = 1220210120093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1220210120195 and 1220210120204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220210123221) 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, 7024395 + ... + 7196008.

It is an arithmetic number, because the mean of its divisors is an integer number (155500117740).

Almost surely, 2^{1220210120221} is an apocalyptic number.

It is an amenable number.

1220210120221 is a deficient number, since it is larger than the sum of its proper divisors (23790821699).

1220210120221 is a wasteful number, since it uses less digits than its factorization.

1220210120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14222075.

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

It can be divided in two parts, 1220210 and 120221, that added together give a palindrome (1340431).

The spelling of 1220210120221 in words is "one trillion, two hundred twenty billion, two hundred ten million, one hundred twenty thousand, two hundred twenty-one".