1002200012121 has 64 divisors (see below), whose sum is σ = 1754013542400. Its totient is φ = 493128000000.

The previous prime is 1002200012063. The next prime is 1002200012141. The reversal of 1002200012121 is 1212100022001.

It is not a de Polignac number, because 1002200012121 - 2⁷ = 1002200011993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1002200012097 and 1002200012106.

It is not an unprimeable number, because it can be changed into a prime (1002200012141) 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, 26705871 + ... + 26743371.

It is an arithmetic number, because the mean of its divisors is an integer number (27406461600).

Almost surely, 2^{1002200012121} is an apocalyptic number.

1002200012121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1002200012121 is a deficient number, since it is larger than the sum of its proper divisors (751813530279).

1002200012121 is a wasteful number, since it uses less digits than its factorization.

1002200012121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43630.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1002200012121 its reverse (1212100022001), we get a palindrome (2214300034122).

The spelling of 1002200012121 in words is "one trillion, two billion, two hundred million, twelve thousand, one hundred twenty-one".