1122221342021 has 16 divisors (see below), whose sum is σ = 1272349189440. Its totient is φ = 981224979840.

The previous prime is 1122221341993. The next prime is 1122221342027. The reversal of 1122221342021 is 1202431222211.

It is a cyclic number.

It is not a de Polignac number, because 1122221342021 - 2²² = 1122217147717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122221342027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1277321 + ... + 1968753.

It is an arithmetic number, because the mean of its divisors is an integer number (79521824340).

Almost surely, 2^{1122221342021} is an apocalyptic number.

It is an amenable number.

1122221342021 is a deficient number, since it is larger than the sum of its proper divisors (150127847419).

1122221342021 is a wasteful number, since it uses less digits than its factorization.

1122221342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 698036.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1122221342021 its reverse (1202431222211), we get a palindrome (2324652564232).

The spelling of 1122221342021 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, three hundred forty-two thousand, twenty-one".