221234110402 has 8 divisors (see below), whose sum is σ = 333518760000. Its totient is φ = 110061190404.

The previous prime is 221234110387. The next prime is 221234110439. The reversal of 221234110402 is 204011432122.

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

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, 277931902 + ... + 277932697.

It is an arithmetic number, because the mean of its divisors is an integer number (41689845000).

Almost surely, 2^221234110402 is an apocalyptic number.

221234110402 is a deficient number, since it is larger than the sum of its proper divisors (112284649598).

221234110402 is a wasteful number, since it uses less digits than its factorization.

221234110402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555864800.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 221234110402 its reverse (204011432122), we get a palindrome (425245542524).

The spelling of 221234110402 in words is "two hundred twenty-one billion, two hundred thirty-four million, one hundred ten thousand, four hundred two".