1221130033322 has 4 divisors (see below), whose sum is σ = 1831695049986. Its totient is φ = 610565016660.

The previous prime is 1221130033301. The next prime is 1221130033339. The reversal of 1221130033322 is 2233300311221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 736938119401 + 484191913921 = 858451^2 + 695839^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305282508329 + ... + 305282508332.

Almost surely, 2^{1221130033322} is an apocalyptic number.

1221130033322 is a deficient number, since it is larger than the sum of its proper divisors (610565016664).

1221130033322 is an equidigital number, since it uses as much as digits as its factorization.

1221130033322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610565016663.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1221130033322 its reverse (2233300311221), we get a palindrome (3454430344543).

The spelling of 1221130033322 in words is "one trillion, two hundred twenty-one billion, one hundred thirty million, thirty-three thousand, three hundred twenty-two".