10202012012122 has 128 divisors (see below), whose sum is σ = 19025072640000. Its totient is φ = 4089545409600.

The previous prime is 10202012012113. The next prime is 10202012012123. The reversal of 10202012012122 is 22121021020201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 10202012012096 and 10202012012105.

It is not an unprimeable number, because it can be changed into a prime (10202012012123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 472589013 + ... + 472610599.

It is an arithmetic number, because the mean of its divisors is an integer number (148633380000).

Almost surely, 2^{10202012012122} is an apocalyptic number.

10202012012122 is a deficient number, since it is larger than the sum of its proper divisors (8823060627878).

10202012012122 is a wasteful number, since it uses less digits than its factorization.

10202012012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22089 (or 22075 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10202012012122 its reverse (22121021020201), we get a palindrome (32323033032323).

The spelling of 10202012012122 in words is "ten trillion, two hundred two billion, twelve million, twelve thousand, one hundred twenty-two".