212140304120445 has 64 divisors (see below), whose sum is σ = 361028099255040. Its totient is φ = 106166979072000.

The previous prime is 212140304120411. The next prime is 212140304120449. The reversal of 212140304120445 is 544021403041212.

212140304120445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212140304120445 - 2³⁴ = 212123124251261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140304120449) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6699270 + ... + 21660120.

It is an arithmetic number, because the mean of its divisors is an integer number (5641064050860).

Almost surely, 2^{212140304120445} is an apocalyptic number.

It is an amenable number.

212140304120445 is a deficient number, since it is larger than the sum of its proper divisors (148887795134595).

212140304120445 is a wasteful number, since it uses less digits than its factorization.

212140304120445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14961806.

The product of its (nonzero) digits is 30720, while the sum is 33.

Adding to 212140304120445 its reverse (544021403041212), we get a palindrome (756161707161657).

The spelling of 212140304120445 in words is "two hundred twelve trillion, one hundred forty billion, three hundred four million, one hundred twenty thousand, four hundred forty-five".