121222022100212 has 48 divisors (see below), whose sum is σ = 236284773907392. Its totient is φ = 53955308628480.

The previous prime is 121222022100149. The next prime is 121222022100227. The reversal of 121222022100212 is 212001220222121.

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, 146460443 + ... + 147285794.

It is an arithmetic number, because the mean of its divisors is an integer number (4922599456404).

Almost surely, 2^{121222022100212} is an apocalyptic number.

It is an amenable number.

121222022100212 is a deficient number, since it is larger than the sum of its proper divisors (115062751807180).

121222022100212 is a wasteful number, since it uses less digits than its factorization.

121222022100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293746448 (or 293746446 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121222022100212 its reverse (212001220222121), we get a palindrome (333223242322333).

The spelling of 121222022100212 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, twenty-two million, one hundred thousand, two hundred twelve".