1002121020202 has 16 divisors (see below), whose sum is σ = 1592052883200. Its totient is φ = 471453352128.

The previous prime is 1002121020161. The next prime is 1002121020233. The reversal of 1002121020202 is 2020201212001.

It is a happy number.

It is a super-4 number, since 4×1002121020202⁴ (a number of 49 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4034202 + ... + 4275397.

It is an arithmetic number, because the mean of its divisors is an integer number (99503305200).

Almost surely, 2^{1002121020202} is an apocalyptic number.

1002121020202 is a deficient number, since it is larger than the sum of its proper divisors (589931862998).

1002121020202 is a wasteful number, since it uses less digits than its factorization.

1002121020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8313165.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 1002121020202 its reverse (2020201212001), we get a palindrome (3022322232203).

The spelling of 1002121020202 in words is "one trillion, two billion, one hundred twenty-one million, twenty thousand, two hundred two".