2002120002122 has 4 divisors (see below), whose sum is σ = 3003180003186. Its totient is φ = 1001060001060.

The previous prime is 2002120002073. The next prime is 2002120002143. The reversal of 2002120002122 is 2212000212002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1612008583201 + 390111418921 = 1269649^2 + 624589^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2002120002097 and 2002120002106.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500530000529 + ... + 500530000532.

Almost surely, 2^{2002120002122} is an apocalyptic number.

2002120002122 is a deficient number, since it is larger than the sum of its proper divisors (1001060001064).

2002120002122 is a wasteful number, since it uses less digits than its factorization.

2002120002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001060001063.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2002120002122 its reverse (2212000212002), we get a palindrome (4214120214124).

The spelling of 2002120002122 in words is "two trillion, two billion, one hundred twenty million, two thousand, one hundred twenty-two".