212771926490 has 16 divisors (see below), whose sum is σ = 383010444648. Its totient is φ = 85104109056.

The previous prime is 212771926483. The next prime is 212771926513. The reversal of 212771926490 is 94629177212.

It is a happy number.

212771926490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 164792966809 + 47978959681 = 405947^2 + 219041^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387887 + ... + 758946.

Almost surely, 2^212771926490 is an apocalyptic number.

212771926490 is a deficient number, since it is larger than the sum of its proper divisors (170238518158).

212771926490 is a wasteful number, since it uses less digits than its factorization.

212771926490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165393.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 212771926490 in words is "two hundred twelve billion, seven hundred seventy-one million, nine hundred twenty-six thousand, four hundred ninety".