221553507723054 has 32 divisors (see below), whose sum is σ = 481651910409600. Its totient is φ = 67533204364512.

The previous prime is 221553507722971. The next prime is 221553507723071. The reversal of 221553507723054 is 450327705355122.

It is a junction number, because it is equal to n+sod(n) for n = 221553507722988 and 221553507723006.

It is a congruent number.

It is an unprimeable number.

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, 13273027104 + ... + 13273043795.

It is an arithmetic number, because the mean of its divisors is an integer number (15051622200300).

Almost surely, 2^{221553507723054} is an apocalyptic number.

221553507723054 is an abundant number, since it is smaller than the sum of its proper divisors (260098402686546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221553507723054 is a wasteful number, since it uses less digits than its factorization.

221553507723054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26546071024.

The product of its (nonzero) digits is 8820000, while the sum is 51.

The spelling of 221553507723054 in words is "two hundred twenty-one trillion, five hundred fifty-three billion, five hundred seven million, seven hundred twenty-three thousand, fifty-four".