10221000212 has 6 divisors (see below), whose sum is σ = 17886750378. Its totient is φ = 5110500104.

The previous prime is 10221000203. The next prime is 10221000227. The reversal of 10221000212 is 21200012201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10097034256 + 123965956 = 100484^2 + 11134^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10221000193 and 10221000202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277625023 + ... + 1277625030.

It is an arithmetic number, because the mean of its divisors is an integer number (2981125063).

Almost surely, 2^10221000212 is an apocalyptic number.

It is an amenable number.

10221000212 is a deficient number, since it is larger than the sum of its proper divisors (7665750166).

10221000212 is a wasteful number, since it uses less digits than its factorization.

10221000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555250057 (or 2555250055 counting only the distinct ones).

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

Adding to 10221000212 its reverse (21200012201), we get a palindrome (31421012413).

The spelling of 10221000212 in words is "ten billion, two hundred twenty-one million, two hundred twelve", and thus it is an aban number.