2145124522200 has 96 divisors (see below), whose sum is σ = 7254421133760. Its totient is φ = 520030185600.

The previous prime is 2145124522199. The next prime is 2145124522249. The reversal of 2145124522200 is 22254215412.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162502834 + ... + 162516033.

It is an arithmetic number, because the mean of its divisors is an integer number (75566886810).

Almost surely, 2^{2145124522200} is an apocalyptic number.

2145124522200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2145124522200 is an abundant number, since it is smaller than the sum of its proper divisors (5109296611560).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145124522200 is a wasteful number, since it uses less digits than its factorization.

2145124522200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325018897 (or 325018888 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 2145124522200 its reverse (22254215412), we get a palindrome (2167378737612).

The spelling of 2145124522200 in words is "two trillion, one hundred forty-five billion, one hundred twenty-four million, five hundred twenty-two thousand, two hundred".