20012022122121 has 64 divisors (see below), whose sum is σ = 30726915360000. Its totient is φ = 12857313047040.

The previous prime is 20012022122093. The next prime is 20012022122143. The reversal of 20012022122121 is 12122122021002.

It is a happy number.

20012022122121 is a `hidden beast` number, since 200 + 1 + 2 + 0 + 221 + 221 + 21 = 666.

It is not a de Polignac number, because 20012022122121 - 2¹³ = 20012022113929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012022122094 and 20012022122103.

It is not an unprimeable number, because it can be changed into a prime (20012022122221) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2121486021 + ... + 2121495453.

It is an arithmetic number, because the mean of its divisors is an integer number (480108052500).

Almost surely, 2^{20012022122121} is an apocalyptic number.

It is an amenable number.

20012022122121 is a deficient number, since it is larger than the sum of its proper divisors (10714893237879).

20012022122121 is a wasteful number, since it uses less digits than its factorization.

20012022122121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14231 (or 14225 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 20012022122121 its reverse (12122122021002), we get a palindrome (32134144143123).

The spelling of 20012022122121 in words is "twenty trillion, twelve billion, twenty-two million, one hundred twenty-two thousand, one hundred twenty-one".