2142441200221 has 16 divisors (see below), whose sum is σ = 2451282278400. Its totient is φ = 1834295818608.

The previous prime is 2142441200213. The next prime is 2142441200227. The reversal of 2142441200221 is 1220021442412.

It is a cyclic number.

It is not a de Polignac number, because 2142441200221 - 2³ = 2142441200213 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 (2142441200227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22489536 + ... + 22584598.

It is an arithmetic number, because the mean of its divisors is an integer number (153205142400).

Almost surely, 2^{2142441200221} is an apocalyptic number.

It is an amenable number.

2142441200221 is a deficient number, since it is larger than the sum of its proper divisors (308841078179).

2142441200221 is a wasteful number, since it uses less digits than its factorization.

2142441200221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98688.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 2142441200221 its reverse (1220021442412), we get a palindrome (3362462642633).

The spelling of 2142441200221 in words is "two trillion, one hundred forty-two billion, four hundred forty-one million, two hundred thousand, two hundred twenty-one".