212150122545 has 64 divisors (see below), whose sum is σ = 346075545600. Its totient is φ = 110954188800.

The previous prime is 212150122523. The next prime is 212150122567. The reversal of 212150122545 is 545221051212.

It is an interprime number because it is at equal distance from previous prime (212150122523) and next prime (212150122567).

It is not a de Polignac number, because 212150122545 - 2¹⁹ = 212149598257 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 232875640 + ... + 232876550.

It is an arithmetic number, because the mean of its divisors is an integer number (5407430400).

Almost surely, 2^212150122545 is an apocalyptic number.

It is an amenable number.

212150122545 is a deficient number, since it is larger than the sum of its proper divisors (133925423055).

212150122545 is a wasteful number, since it uses less digits than its factorization.

212150122545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926.

The product of its (nonzero) digits is 8000, while the sum is 30.

Adding to 212150122545 its reverse (545221051212), we get a palindrome (757371173757).

The spelling of 212150122545 in words is "two hundred twelve billion, one hundred fifty million, one hundred twenty-two thousand, five hundred forty-five".