212721465141 has 16 divisors (see below), whose sum is σ = 315201347520. Its totient is φ = 141788013840.

The previous prime is 212721465107. The next prime is 212721465149. The reversal of 212721465141 is 141564127212.

212721465141 is a `hidden beast` number, since 2 + 127 + 2 + 14 + 6 + 514 + 1 = 666.

It is not a de Polignac number, because 212721465141 - 2¹⁷ = 212721334069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212721465096 and 212721465105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212721465149) 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, 581595 + ... + 873896.

It is an arithmetic number, because the mean of its divisors is an integer number (19700084220).

Almost surely, 2^212721465141 is an apocalyptic number.

It is an amenable number.

212721465141 is a deficient number, since it is larger than the sum of its proper divisors (102479882379).

212721465141 is a wasteful number, since it uses less digits than its factorization.

212721465141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1460913 (or 1460907 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The spelling of 212721465141 in words is "two hundred twelve billion, seven hundred twenty-one million, four hundred sixty-five thousand, one hundred forty-one".