221021212094 has 8 divisors (see below), whose sum is σ = 332918981280. Its totient is φ = 110048218336.

The previous prime is 221021212081. The next prime is 221021212117. The reversal of 221021212094 is 490212120122.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231193259 + ... + 231194214.

It is an arithmetic number, because the mean of its divisors is an integer number (41614872660).

Almost surely, 2^221021212094 is an apocalyptic number.

221021212094 is a deficient number, since it is larger than the sum of its proper divisors (111897769186).

221021212094 is a wasteful number, since it uses less digits than its factorization.

221021212094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462387714.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 221021212094 in words is "two hundred twenty-one billion, twenty-one million, two hundred twelve thousand, ninety-four".