2223751384021 has 2 divisors, whose sum is σ = 2223751384022. Its totient is φ = 2223751384020.

The previous prime is 2223751383989. The next prime is 2223751384067. The reversal of 2223751384021 is 1204831573222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1379952981796 + 843798402225 = 1174714^2 + 918585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223751384021 - 2⁵ = 2223751383989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223751784021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111875692010 + 1111875692011.

It is an arithmetic number, because the mean of its divisors is an integer number (1111875692011).

Almost surely, 2^{2223751384021} is an apocalyptic number.

It is an amenable number.

2223751384021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223751384021 is an equidigital number, since it uses as much as digits as its factorization.

2223751384021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 2223751384021 in words is "two trillion, two hundred twenty-three billion, seven hundred fifty-one million, three hundred eighty-four thousand, twenty-one".