2421022242655 has 16 divisors (see below), whose sum is σ = 2941233168384. Its totient is φ = 1912950254880.

The previous prime is 2421022242647. The next prime is 2421022242677. The reversal of 2421022242655 is 5562422201242.

It is not a de Polignac number, because 2421022242655 - 2³ = 2421022242647 is a prime.

It is a super-2 number, since 2×2421022242655² (a number of 26 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 8406901 + ... + 8690110.

It is an arithmetic number, because the mean of its divisors is an integer number (183827073024).

Almost surely, 2^{2421022242655} is an apocalyptic number.

2421022242655 is a deficient number, since it is larger than the sum of its proper divisors (520210925729).

2421022242655 is a wasteful number, since it uses less digits than its factorization.

2421022242655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17097366.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 2421022242655 its reverse (5562422201242), we get a palindrome (7983444443897).

The spelling of 2421022242655 in words is "two trillion, four hundred twenty-one billion, twenty-two million, two hundred forty-two thousand, six hundred fifty-five".