10212220022121 has 72 divisors (see below), whose sum is σ = 16020832478976. Its totient is φ = 6265628328960.

The previous prime is 10212220022113. The next prime is 10212220022159. The reversal of 10212220022121 is 12122002221201.

It is a happy number.

10212220022121 is a `hidden beast` number, since 10 + 212 + 2 + 200 + 221 + 21 = 666.

It is not a de Polignac number, because 10212220022121 - 2³ = 10212220022113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10212220022094 and 10212220022103.

It is not an unprimeable number, because it can be changed into a prime (10212220022621) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1168843065 + ... + 1168851801.

It is an arithmetic number, because the mean of its divisors is an integer number (222511562208).

Almost surely, 2^{10212220022121} is an apocalyptic number.

It is an amenable number.

10212220022121 is a deficient number, since it is larger than the sum of its proper divisors (5808612456855).

10212220022121 is a wasteful number, since it uses less digits than its factorization.

10212220022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10983 (or 10967 counting only the distinct ones).

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

Adding to 10212220022121 its reverse (12122002221201), we get a palindrome (22334222243322).

The spelling of 10212220022121 in words is "ten trillion, two hundred twelve billion, two hundred twenty million, twenty-two thousand, one hundred twenty-one".