212211122210012 has 6 divisors (see below), whose sum is σ = 371369463867528. Its totient is φ = 106105561105004.

The previous prime is 212211122209949. The next prime is 212211122210027. The reversal of 212211122210012 is 210012221112212.

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, 26526390276248 + ... + 26526390276255.

It is an arithmetic number, because the mean of its divisors is an integer number (61894910644588).

Almost surely, 2^{212211122210012} is an apocalyptic number.

It is an amenable number.

212211122210012 is a deficient number, since it is larger than the sum of its proper divisors (159158341657516).

212211122210012 is a wasteful number, since it uses less digits than its factorization.

212211122210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53052780552507 (or 53052780552505 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212211122210012 its reverse (210012221112212), we get a palindrome (422223343322224).

The spelling of 212211122210012 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred twenty-two million, two hundred ten thousand, twelve".