2102222002545 has 48 divisors (see below), whose sum is σ = 4166351729280. Its totient is φ = 960565761792.

The previous prime is 2102222002499. The next prime is 2102222002547. The reversal of 2102222002545 is 5452002222012.

It is a happy number.

2102222002545 is a `hidden beast` number, since 210 + 222 + 200 + 25 + 4 + 5 = 666.

It is not a de Polignac number, because 2102222002545 - 2¹⁰ = 2102222001521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2102222002547) 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, 888315 + ... + 2234624.

It is an arithmetic number, because the mean of its divisors is an integer number (86798994360).

Almost surely, 2^{2102222002545} is an apocalyptic number.

It is an amenable number.

2102222002545 is a deficient number, since it is larger than the sum of its proper divisors (2064129726735).

2102222002545 is a wasteful number, since it uses less digits than its factorization.

2102222002545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125094 (or 3125091 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

Adding to 2102222002545 its reverse (5452002222012), we get a palindrome (7554224224557).

The spelling of 2102222002545 in words is "two trillion, one hundred two billion, two hundred twenty-two million, two thousand, five hundred forty-five".