212110021010 has 16 divisors (see below), whose sum is σ = 381803290200. Its totient is φ = 84842841216.

The previous prime is 212110021009. The next prime is 212110021043. The reversal of 212110021010 is 10120011212.

It can be written as a sum of positive squares in 4 ways, for example, as 175022579449 + 37087441561 = 418357^2 + 192581^2 .

It is a super-2 number, since 2×212110021010² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212110020982 and 212110021000.

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 7 ways as a sum of consecutive naturals, for example, 1294796 + ... + 1449384.

Almost surely, 2^212110021010 is an apocalyptic number.

212110021010 is a deficient number, since it is larger than the sum of its proper divisors (169693269190).

212110021010 is a wasteful number, since it uses less digits than its factorization.

212110021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291805.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 212110021010 its reverse (10120011212), we get a palindrome (222230032222).

The spelling of 212110021010 in words is "two hundred twelve billion, one hundred ten million, twenty-one thousand, ten".