1002202022121 has 8 divisors (see below), whose sum is σ = 1336274172480. Its totient is φ = 668132276592.

The previous prime is 1002202021969. The next prime is 1002202022123. The reversal of 1002202022121 is 1212202022001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1002202022121 - 2¹⁹ = 1002201497833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002202022121.

It is not an unprimeable number, because it can be changed into a prime (1002202022123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923860 + ... + 1690538.

It is an arithmetic number, because the mean of its divisors is an integer number (167034271560).

Almost surely, 2^{1002202022121} is an apocalyptic number.

It is an amenable number.

1002202022121 is a deficient number, since it is larger than the sum of its proper divisors (334072150359).

1002202022121 is an equidigital number, since it uses as much as digits as its factorization.

1002202022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202415.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1002202022121 its reverse (1212202022001), we get a palindrome (2214404044122).

The spelling of 1002202022121 in words is "one trillion, two billion, two hundred two million, twenty-two thousand, one hundred twenty-one".