221420232310 has 8 divisors (see below), whose sum is σ = 398556418176. Its totient is φ = 88568092920.

The previous prime is 221420232277. The next prime is 221420232323. The reversal of 221420232310 is 13232024122.

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

It is a super-2 number, since 2×221420232310² (a number of 23 digits) contains 22 as substring.

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, 11071011606 + ... + 11071011625.

It is an arithmetic number, because the mean of its divisors is an integer number (49819552272).

Almost surely, 2^221420232310 is an apocalyptic number.

221420232310 is a deficient number, since it is larger than the sum of its proper divisors (177136185866).

221420232310 is a wasteful number, since it uses less digits than its factorization.

221420232310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22142023238.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 221420232310 its reverse (13232024122), we get a palindrome (234652256432).

The spelling of 221420232310 in words is "two hundred twenty-one billion, four hundred twenty million, two hundred thirty-two thousand, three hundred ten".