42122211041645 has 8 divisors (see below), whose sum is σ = 57767603714304. Its totient is φ = 28883801857104.

The previous prime is 42122211041629. The next prime is 42122211041693. The reversal of 42122211041645 is 54614011222124.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 42122211041645 - 2⁴ = 42122211041629 is a prime.

It is a super-3 number, since 3×42122211041645³ (a number of 42 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35), and also a Moran number because the ratio is a prime number: 1203491744047 = 42122211041645 / (4 + 2 + 1 + 2 + 2 + 2 + 1 + 1 + 0 + 4 + 1 + 6 + 4 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 601745871989 + ... + 601745872058.

It is an arithmetic number, because the mean of its divisors is an integer number (7220950464288).

Almost surely, 2^{42122211041645} is an apocalyptic number.

It is an amenable number.

42122211041645 is a deficient number, since it is larger than the sum of its proper divisors (15645392672659).

42122211041645 is a wasteful number, since it uses less digits than its factorization.

42122211041645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203491744059.

The product of its (nonzero) digits is 30720, while the sum is 35.

Adding to 42122211041645 its reverse (54614011222124), we get a palindrome (96736222263769).

The spelling of 42122211041645 in words is "forty-two trillion, one hundred twenty-two billion, two hundred eleven million, forty-one thousand, six hundred forty-five".