122121220210012 has 12 divisors (see below), whose sum is σ = 213717997655680. Its totient is φ = 61058935165536.

The previous prime is 122121220209949. The next prime is 122121220210037. The reversal of 122121220210012 is 210012022121221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418570812 + ... + 418862467.

Almost surely, 2^{122121220210012} is an apocalyptic number.

It is an amenable number.

122121220210012 is a deficient number, since it is larger than the sum of its proper divisors (91596777445668).

122121220210012 is a wasteful number, since it uses less digits than its factorization.

122121220210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837469740 (or 837469738 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 122121220210012 its reverse (210012022121221), we get a palindrome (332133242331233).

The spelling of 122121220210012 in words is "one hundred twenty-two trillion, one hundred twenty-one billion, two hundred twenty million, two hundred ten thousand, twelve".