221101552141453 has 2 divisors, whose sum is σ = 221101552141454. Its totient is φ = 221101552141452.

The previous prime is 221101552141451. The next prime is 221101552141469. The reversal of 221101552141453 is 354141255101122.

It is a happy number.

221101552141453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141836237888004 + 79265314253449 = 11909502^2 + 8903107^2 .

It is a cyclic number.

It is not a de Polignac number, because 221101552141453 - 2¹ = 221101552141451 is a prime.

Together with 221101552141451, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221101552141451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550776070726 + 110550776070727.

It is an arithmetic number, because the mean of its divisors is an integer number (110550776070727).

Almost surely, 2^{221101552141453} is an apocalyptic number.

It is an amenable number.

221101552141453 is a deficient number, since it is larger than the sum of its proper divisors (1).

221101552141453 is an equidigital number, since it uses as much as digits as its factorization.

221101552141453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 221101552141453 in words is "two hundred twenty-one trillion, one hundred one billion, five hundred fifty-two million, one hundred forty-one thousand, four hundred fifty-three".