221002054310 has 32 divisors (see below), whose sum is σ = 415806918912. Its totient is φ = 84413206240.

The previous prime is 221002054309. The next prime is 221002054367. The reversal of 221002054310 is 13450200122.

It is a super-2 number, since 2×221002054310² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 683456 + ... + 953475.

It is an arithmetic number, because the mean of its divisors is an integer number (12993966216).

Almost surely, 2^221002054310 is an apocalyptic number.

221002054310 is a deficient number, since it is larger than the sum of its proper divisors (194804864602).

221002054310 is a wasteful number, since it uses less digits than its factorization.

221002054310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1637548.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 221002054310 its reverse (13450200122), we get a palindrome (234452254432).

The spelling of 221002054310 in words is "two hundred twenty-one billion, two million, fifty-four thousand, three hundred ten".