102121020002 has 8 divisors (see below), whose sum is σ = 155692702812. Its totient is φ = 50223452400.

The previous prime is 102121019969. The next prime is 102121020017. The reversal of 102121020002 is 200020121201.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 100806885001 + 1314135001 = 317501^2 + 36251^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 418528649 + ... + 418528892.

Almost surely, 2^102121020002 is an apocalyptic number.

102121020002 is a deficient number, since it is larger than the sum of its proper divisors (53571682810).

102121020002 is an equidigital number, since it uses as much as digits as its factorization.

102121020002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837057604.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 102121020002 its reverse (200020121201), we get a palindrome (302141141203).

The spelling of 102121020002 in words is "one hundred two billion, one hundred twenty-one million, twenty thousand, two".