2145222240057 has 48 divisors (see below), whose sum is σ = 3430572250560. Its totient is φ = 1283194244736.

The previous prime is 2145222240011. The next prime is 2145222240103. The reversal of 2145222240057 is 7500422225412.

2145222240057 is a `hidden beast` number, since 2 + 145 + 222 + 240 + 0 + 57 = 666.

It is an interprime number because it is at equal distance from previous prime (2145222240011) and next prime (2145222240103).

It is not a de Polignac number, because 2145222240057 - 2²⁶ = 2145155131193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2145222242057) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4168098 + ... + 4654404.

It is an arithmetic number, because the mean of its divisors is an integer number (71470255220).

Almost surely, 2^{2145222240057} is an apocalyptic number.

It is an amenable number.

2145222240057 is a deficient number, since it is larger than the sum of its proper divisors (1285350010503).

2145222240057 is a wasteful number, since it uses less digits than its factorization.

2145222240057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487382 (or 487379 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 36.

Adding to 2145222240057 its reverse (7500422225412), we get a palindrome (9645644465469).

The spelling of 2145222240057 in words is "two trillion, one hundred forty-five billion, two hundred twenty-two million, two hundred forty thousand, fifty-seven".