20122002101121 has 16 divisors (see below), whose sum is σ = 27082035025344. Its totient is φ = 13288336746944.

The previous prime is 20122002101111. The next prime is 20122002101143. The reversal of 20122002101121 is 12110120022102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20122002101121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20122002101121.

It is not an unprimeable number, because it can be changed into a prime (20122002101111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2195911 + ... + 6713123.

It is an arithmetic number, because the mean of its divisors is an integer number (1692627189084).

Almost surely, 2^{20122002101121} is an apocalyptic number.

It is an amenable number.

20122002101121 is a deficient number, since it is larger than the sum of its proper divisors (6960032924223).

20122002101121 is a wasteful number, since it uses less digits than its factorization.

20122002101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4531200.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20122002101121 its reverse (12110120022102), we get a palindrome (32232122123223).

The spelling of 20122002101121 in words is "twenty trillion, one hundred twenty-two billion, two million, one hundred one thousand, one hundred twenty-one".