221023532244154 has 32 divisors (see below), whose sum is σ = 333413617305600. Its totient is φ = 109886165612160.

The previous prime is 221023532244121. The next prime is 221023532244157. The reversal of 221023532244154 is 451442235320122.

It is not an unprimeable number, because it can be changed into a prime (221023532244157) 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, 16066252644 + ... + 16066266400.

It is an arithmetic number, because the mean of its divisors is an integer number (10419175540800).

Almost surely, 2^{221023532244154} is an apocalyptic number.

221023532244154 is a deficient number, since it is larger than the sum of its proper divisors (112390085061446).

221023532244154 is a wasteful number, since it uses less digits than its factorization.

221023532244154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28878.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 221023532244154 its reverse (451442235320122), we get a palindrome (672465767564276).

The spelling of 221023532244154 in words is "two hundred twenty-one trillion, twenty-three billion, five hundred thirty-two million, two hundred forty-four thousand, one hundred fifty-four".