221122221094 has 16 divisors (see below), whose sum is σ = 344845992960. Its totient is φ = 106224873480.

The previous prime is 221122221091. The next prime is 221122221113. The reversal of 221122221094 is 490122221122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122221091) 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, 12820474 + ... + 12837709.

It is an arithmetic number, because the mean of its divisors is an integer number (21552874560).

Almost surely, 2^221122221094 is an apocalyptic number.

221122221094 is a deficient number, since it is larger than the sum of its proper divisors (123723771866).

221122221094 is a wasteful number, since it uses less digits than its factorization.

221122221094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25658355.

The product of its (nonzero) digits is 2304, while the sum is 28.

Adding to 221122221094 its sum of digits (28), we get a palindrome (221122221122).

The spelling of 221122221094 in words is "two hundred twenty-one billion, one hundred twenty-two million, two hundred twenty-one thousand, ninety-four".