1122210321221 has 32 divisors (see below), whose sum is σ = 1274601968640. Its totient is φ = 979061529600.

The previous prime is 1122210321203. The next prime is 1122210321247. The reversal of 1122210321221 is 1221230122211.

It is not a de Polignac number, because 1122210321221 - 2²⁶ = 1122143212357 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1122210321193 and 1122210321202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122210329221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58957976 + ... + 58977006.

It is an arithmetic number, because the mean of its divisors is an integer number (39831311520).

Almost surely, 2^{1122210321221} is an apocalyptic number.

1122210321221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122210321221 is a deficient number, since it is larger than the sum of its proper divisors (152391647419).

1122210321221 is a wasteful number, since it uses less digits than its factorization.

1122210321221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21257.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1122210321221 its reverse (1221230122211), we get a palindrome (2343440443432).

The spelling of 1122210321221 in words is "one trillion, one hundred twenty-two billion, two hundred ten million, three hundred twenty-one thousand, two hundred twenty-one".