212000221010 has 32 divisors (see below), whose sum is σ = 389914786800. Its totient is φ = 82961618688.

The previous prime is 212000221007. The next prime is 212000221031. The reversal of 212000221010 is 10122000212.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 146895126361 + 65105094649 = 383269^2 + 255157^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212000220982 and 212000221000.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 388097 + ... + 758036.

Almost surely, 2^212000221010 is an apocalyptic number.

212000221010 is a deficient number, since it is larger than the sum of its proper divisors (177914565790).

212000221010 is a wasteful number, since it uses less digits than its factorization.

212000221010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146542.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 212000221010 its reverse (10122000212), we get a palindrome (222122221222).

The spelling of 212000221010 in words is "two hundred twelve billion, two hundred twenty-one thousand, ten".