1122020220221 has 8 divisors (see below), whose sum is σ = 1147349055360. Its totient is φ = 1096752054528.

The previous prime is 1122020220197. The next prime is 1122020220227. The reversal of 1122020220221 is 1220220202211.

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 1122020220221 - 2¹⁸ = 1122019958077 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122020220221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122020220227) 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, 15129956 + ... + 15203933.

It is an arithmetic number, because the mean of its divisors is an integer number (143418631920).

Almost surely, 2^{1122020220221} is an apocalyptic number.

It is an amenable number.

1122020220221 is a deficient number, since it is larger than the sum of its proper divisors (25328835139).

1122020220221 is an equidigital number, since it uses as much as digits as its factorization.

1122020220221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30334723.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1122020220221 its reverse (1220220202211), we get a palindrome (2342240422432).

The spelling of 1122020220221 in words is "one trillion, one hundred twenty-two billion, twenty million, two hundred twenty thousand, two hundred twenty-one".