1002012122122 has 32 divisors (see below), whose sum is σ = 1684780974720. Its totient is φ = 442937234880.

The previous prime is 1002012122119. The next prime is 1002012122123. The reversal of 1002012122122 is 2212212102001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1002012122096 and 1002012122105.

It is not an unprimeable number, because it can be changed into a prime (1002012122123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1403904 + ... + 1993732.

It is an arithmetic number, because the mean of its divisors is an integer number (52649405460).

Almost surely, 2^{1002012122122} is an apocalyptic number.

1002012122122 is a deficient number, since it is larger than the sum of its proper divisors (682768852598).

1002012122122 is a wasteful number, since it uses less digits than its factorization.

1002012122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591966.

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

Adding to 1002012122122 its reverse (2212212102001), we get a palindrome (3214224224123).

The spelling of 1002012122122 in words is "one trillion, two billion, twelve million, one hundred twenty-two thousand, one hundred twenty-two".