102121201002 has 16 divisors (see below), whose sum is σ = 204257192832. Its totient is φ = 34037935200.

The previous prime is 102121201001. The next prime is 102121201003. The reversal of 102121201002 is 200102121201.

It is an interprime number because it is at equal distance from previous prime (102121201001) and next prime (102121201003).

It is not an unprimeable number, because it can be changed into a prime (102121201001) 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 7 ways as a sum of consecutive naturals, for example, 525499 + ... + 693102.

It is an arithmetic number, because the mean of its divisors is an integer number (12766074552).

Almost surely, 2^102121201002 is an apocalyptic number.

102121201002 is an abundant number, since it is smaller than the sum of its proper divisors (102135991830).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102121201002 is a wasteful number, since it uses less digits than its factorization.

102121201002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232573.

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

Adding to 102121201002 its reverse (200102121201), we get a palindrome (302223322203).

The spelling of 102121201002 in words is "one hundred two billion, one hundred twenty-one million, two hundred one thousand, two".