1021212200212 has 48 divisors (see below), whose sum is σ = 1882746835200. Its totient is φ = 483715203840.

The previous prime is 1021212200207. The next prime is 1021212200221. The reversal of 1021212200212 is 2120022121201.

It is a happy number.

It is a congruent number.

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, 24457489 + ... + 24499207.

It is an arithmetic number, because the mean of its divisors is an integer number (39223892400).

Almost surely, 2^{1021212200212} is an apocalyptic number.

It is an amenable number.

1021212200212 is a deficient number, since it is larger than the sum of its proper divisors (861534634988).

1021212200212 is a wasteful number, since it uses less digits than its factorization.

1021212200212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44296 (or 44294 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021212200212 its reverse (2120022121201), we get a palindrome (3141234321413).

The spelling of 1021212200212 in words is "one trillion, twenty-one billion, two hundred twelve million, two hundred thousand, two hundred twelve".