122120201221012 has 6 divisors (see below), whose sum is σ = 213710352136778. Its totient is φ = 61060100610504.

The previous prime is 122120201221001. The next prime is 122120201221087. The reversal of 122120201221012 is 210122102021221.

It can be written as a sum of positive squares in only one way, i.e., 119372974530436 + 2747226690576 = 10925794^2 + 1657476^2 .

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, 15265025152623 + ... + 15265025152630.

Almost surely, 2^{122120201221012} is an apocalyptic number.

It is an amenable number.

122120201221012 is a deficient number, since it is larger than the sum of its proper divisors (91590150915766).

122120201221012 is a wasteful number, since it uses less digits than its factorization.

122120201221012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30530050305257 (or 30530050305255 counting only the distinct ones).

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

Adding to 122120201221012 its reverse (210122102021221), we get a palindrome (332242303242233).

The spelling of 122120201221012 in words is "one hundred twenty-two trillion, one hundred twenty billion, two hundred one million, two hundred twenty-one thousand, twelve".