221373053146 has 32 divisors (see below), whose sum is σ = 385083942912. Its totient is φ = 93479028720.

The previous prime is 221373053131. The next prime is 221373053147. The reversal of 221373053146 is 641350373122.

It is not an unprimeable number, because it can be changed into a prime (221373053147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1528065 + ... + 1666651.

It is an arithmetic number, because the mean of its divisors is an integer number (12033873216).

Almost surely, 2^221373053146 is an apocalyptic number.

221373053146 is a deficient number, since it is larger than the sum of its proper divisors (163710889766).

221373053146 is a wasteful number, since it uses less digits than its factorization.

221373053146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140274.

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 221373053146 in words is "two hundred twenty-one billion, three hundred seventy-three million, fifty-three thousand, one hundred forty-six".