222420142501 has 4 divisors (see below), whose sum is σ = 222430665600. Its totient is φ = 222409619404.

The previous prime is 222420142493. The next prime is 222420142507. The reversal of 222420142501 is 105241024222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 222420142501 - 2³ = 222420142493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222420142507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5229781 + ... + 5272138.

It is an arithmetic number, because the mean of its divisors is an integer number (55607666400).

Almost surely, 2^222420142501 is an apocalyptic number.

It is an amenable number.

222420142501 is a deficient number, since it is larger than the sum of its proper divisors (10523099).

222420142501 is a wasteful number, since it uses less digits than its factorization.

222420142501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10523098.

The product of its (nonzero) digits is 2560, while the sum is 25.

Adding to 222420142501 its reverse (105241024222), we get a palindrome (327661166723).

The spelling of 222420142501 in words is "two hundred twenty-two billion, four hundred twenty million, one hundred forty-two thousand, five hundred one".