221010423422 has 8 divisors (see below), whose sum is σ = 331539260976. Its totient is φ = 110497336432.

The previous prime is 221010423421. The next prime is 221010423443. The reversal of 221010423422 is 224324010122.

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

It is a super-2 number, since 2×221010423422² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221010423421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3902498 + ... + 3958725.

It is an arithmetic number, because the mean of its divisors is an integer number (41442407622).

Almost surely, 2^221010423422 is an apocalyptic number.

221010423422 is a deficient number, since it is larger than the sum of its proper divisors (110528837554).

221010423422 is a wasteful number, since it uses less digits than its factorization.

221010423422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7875282.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 221010423422 its reverse (224324010122), we get a palindrome (445334433544).

The spelling of 221010423422 in words is "two hundred twenty-one billion, ten million, four hundred twenty-three thousand, four hundred twenty-two".