221753712400226 has 16 divisors (see below), whose sum is σ = 335366770922496. Its totient is φ = 109966277851296.

The previous prime is 221753712400223. The next prime is 221753712400249. The reversal of 221753712400226 is 622004217357122.

221753712400226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (221753712400223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 371974526 + ... + 372570201.

It is an arithmetic number, because the mean of its divisors is an integer number (20960423182656).

Almost surely, 2^{221753712400226} is an apocalyptic number.

221753712400226 is a deficient number, since it is larger than the sum of its proper divisors (113613058522270).

221753712400226 is a wasteful number, since it uses less digits than its factorization.

221753712400226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744545953.

The product of its (nonzero) digits is 564480, while the sum is 44.

Adding to 221753712400226 its reverse (622004217357122), we get a palindrome (843757929757348).

The spelling of 221753712400226 in words is "two hundred twenty-one trillion, seven hundred fifty-three billion, seven hundred twelve million, four hundred thousand, two hundred twenty-six".