2142201717255 has 8 divisors (see below), whose sum is σ = 3427522747632. Its totient is φ = 1142507582528.

The previous prime is 2142201717251. The next prime is 2142201717263. The reversal of 2142201717255 is 5527171022412.

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 2142201717255 - 2² = 2142201717251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142201717251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71406723894 + ... + 71406723923.

It is an arithmetic number, because the mean of its divisors is an integer number (428440343454).

Almost surely, 2^{2142201717255} is an apocalyptic number.

2142201717255 is a deficient number, since it is larger than the sum of its proper divisors (1285321030377).

2142201717255 is a wasteful number, since it uses less digits than its factorization.

2142201717255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142813447825.

The product of its (nonzero) digits is 78400, while the sum is 39.

Adding to 2142201717255 its reverse (5527171022412), we get a palindrome (7669372739667).

The spelling of 2142201717255 in words is "two trillion, one hundred forty-two billion, two hundred one million, seven hundred seventeen thousand, two hundred fifty-five".