42222061 has 4 divisors (see below), whose sum is σ = 48253792. Its totient is φ = 36190332.

The previous prime is 42222049. The next prime is 42222073. The reversal of 42222061 is 16022224.

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 an interprime number because it is at equal distance from previous prime (42222049) and next prime (42222073).

It is a cyclic number.

It is not a de Polignac number, because 42222061 - 2¹³ = 42213869 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 (42222041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3015855 + ... + 3015868.

It is an arithmetic number, because the mean of its divisors is an integer number (12063448).

Almost surely, 2^42222061 is an apocalyptic number.

It is an amenable number.

42222061 is a deficient number, since it is larger than the sum of its proper divisors (6031731).

42222061 is an equidigital number, since it uses as much as digits as its factorization.

42222061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6031730.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 42222061 is about 6497.8504907392. The cubic root of 42222061 is about 348.2141990635.

Adding to 42222061 its reverse (16022224), we get a palindrome (58244285).

The spelling of 42222061 in words is "forty-two million, two hundred twenty-two thousand, sixty-one".