221052034254 has 32 divisors (see below), whose sum is σ = 444111876000. Its totient is φ = 73349489664.

The previous prime is 221052034223. The next prime is 221052034283. The reversal of 221052034254 is 452430250122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11104342 + ... + 11124230.

It is an arithmetic number, because the mean of its divisors is an integer number (13878496125).

Almost surely, 2^221052034254 is an apocalyptic number.

221052034254 is an abundant number, since it is smaller than the sum of its proper divisors (223059841746).

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

221052034254 is a wasteful number, since it uses less digits than its factorization.

221052034254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28212.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 221052034254 its reverse (452430250122), we get a palindrome (673482284376).

The spelling of 221052034254 in words is "two hundred twenty-one billion, fifty-two million, thirty-four thousand, two hundred fifty-four".