221012090342 has 8 divisors (see below), whose sum is σ = 336952859232. Its totient is φ = 108694470600.

The previous prime is 221012090317. The next prime is 221012090357. The reversal of 221012090342 is 243090210122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905787134 + ... + 905787377.

It is an arithmetic number, because the mean of its divisors is an integer number (42119107404).

Almost surely, 2^221012090342 is an apocalyptic number.

221012090342 is a deficient number, since it is larger than the sum of its proper divisors (115940768890).

221012090342 is a wasteful number, since it uses less digits than its factorization.

221012090342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1811574574.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 221012090342 in words is "two hundred twenty-one billion, twelve million, ninety thousand, three hundred forty-two".