212264461450261 has 16 divisors (see below), whose sum is σ = 233963603697600. Its totient is φ = 190965972257280.

The previous prime is 212264461450253. The next prime is 212264461450267. The reversal of 212264461450261 is 162054164462212.

It is not a de Polignac number, because 212264461450261 - 2³ = 212264461450253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212264461450267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10072315 + ... + 22934263.

It is an arithmetic number, because the mean of its divisors is an integer number (14622725231100).

Almost surely, 2^{212264461450261} is an apocalyptic number.

It is an amenable number.

212264461450261 is a deficient number, since it is larger than the sum of its proper divisors (21699142247339).

212264461450261 is a wasteful number, since it uses less digits than its factorization.

212264461450261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12877524.

The product of its (nonzero) digits is 1105920, while the sum is 46.

The spelling of 212264461450261 in words is "two hundred twelve trillion, two hundred sixty-four billion, four hundred sixty-one million, four hundred fifty thousand, two hundred sixty-one".