1002220210121 has 32 divisors (see below), whose sum is σ = 1118200258560. Its totient is φ = 892400846400.

The previous prime is 1002220210037. The next prime is 1002220210127. The reversal of 1002220210121 is 1210120222001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002220210121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002220210096 and 1002220210105.

It is not an unprimeable number, because it can be changed into a prime (1002220210127) 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 31 ways as a sum of consecutive naturals, for example, 14807126 + ... + 14874656.

It is an arithmetic number, because the mean of its divisors is an integer number (34943758080).

Almost surely, 2^{1002220210121} is an apocalyptic number.

It is an amenable number.

1002220210121 is a deficient number, since it is larger than the sum of its proper divisors (115980048439).

1002220210121 is a wasteful number, since it uses less digits than its factorization.

1002220210121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67917.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1002220210121 its reverse (1210120222001), we get a palindrome (2212340432122).

The spelling of 1002220210121 in words is "one trillion, two billion, two hundred twenty million, two hundred ten thousand, one hundred twenty-one".