1221323114222 has 4 divisors (see below), whose sum is σ = 1831984671336. Its totient is φ = 610661557110.

The previous prime is 1221323114183. The next prime is 1221323114239. The reversal of 1221323114222 is 2224113231221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1221323114191 and 1221323114200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305330778554 + ... + 305330778557.

It is an arithmetic number, because the mean of its divisors is an integer number (457996167834).

Almost surely, 2^{1221323114222} is an apocalyptic number.

1221323114222 is a deficient number, since it is larger than the sum of its proper divisors (610661557114).

1221323114222 is an equidigital number, since it uses as much as digits as its factorization.

1221323114222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610661557113.

The product of its digits is 2304, while the sum is 26.

Adding to 1221323114222 its reverse (2224113231221), we get a palindrome (3445436345443).

The spelling of 1221323114222 in words is "one trillion, two hundred twenty-one billion, three hundred twenty-three million, one hundred fourteen thousand, two hundred twenty-two".