112222022101621 has 2 divisors, whose sum is σ = 112222022101622. Its totient is φ = 112222022101620.

The previous prime is 112222022101601. The next prime is 112222022101669. The reversal of 112222022101621 is 126101220222211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75498894780100 + 36723127321521 = 8689010^2 + 6059961^2 .

It is a cyclic number.

It is not a de Polignac number, because 112222022101621 - 2⁷ = 112222022101493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112222022101601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56111011050810 + 56111011050811.

It is an arithmetic number, because the mean of its divisors is an integer number (56111011050811).

Almost surely, 2^{112222022101621} is an apocalyptic number.

It is an amenable number.

112222022101621 is a deficient number, since it is larger than the sum of its proper divisors (1).

112222022101621 is an equidigital number, since it uses as much as digits as its factorization.

112222022101621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 112222022101621 its reverse (126101220222211), we get a palindrome (238323242323832).

The spelling of 112222022101621 in words is "one hundred twelve trillion, two hundred twenty-two billion, twenty-two million, one hundred one thousand, six hundred twenty-one".