1220132413221 has 8 divisors (see below), whose sum is σ = 1626871891200. Its totient is φ = 813407272032.

The previous prime is 1220132413133. The next prime is 1220132413223. The reversal of 1220132413221 is 1223142310221.

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

It is not a de Polignac number, because 1220132413221 - 2¹⁴ = 1220132396837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220132413191 and 1220132413200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220132413223) 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, 3384021 + ... + 3727178.

It is an arithmetic number, because the mean of its divisors is an integer number (203358986400).

Almost surely, 2^{1220132413221} is an apocalyptic number.

It is an amenable number.

1220132413221 is a deficient number, since it is larger than the sum of its proper divisors (406739477979).

1220132413221 is an equidigital number, since it uses as much as digits as its factorization.

1220132413221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7168395.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1220132413221 its reverse (1223142310221), we get a palindrome (2443274723442).

The spelling of 1220132413221 in words is "one trillion, two hundred twenty billion, one hundred thirty-two million, four hundred thirteen thousand, two hundred twenty-one".