221554034 has 16 divisors (see below), whose sum is σ = 358209600. Its totient is φ = 102165840.

The previous prime is 221554033. The next prime is 221554087. The reversal of 221554034 is 430455122.

It is a happy number.

221554034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221553994 and 221554012.

It is not an unprimeable number, because it can be changed into a prime (221554031) 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, 33329 + ... + 39419.

It is an arithmetic number, because the mean of its divisors is an integer number (22388100).

Almost surely, 2^221554034 is an apocalyptic number.

221554034 is a deficient number, since it is larger than the sum of its proper divisors (136655566).

221554034 is a wasteful number, since it uses less digits than its factorization.

221554034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7505.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 221554034 is about 14884.6912631737. The cubic root of 221554034 is about 605.0991654948.

The spelling of 221554034 in words is "two hundred twenty-one million, five hundred fifty-four thousand, thirty-four".