1202021002102 has 4 divisors (see below), whose sum is σ = 1803031503156. Its totient is φ = 601010501050.

The previous prime is 1202021002009. The next prime is 1202021002109. The reversal of 1202021002102 is 2012001202021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202021002109) 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 as a sum of consecutive naturals, namely, 300505250524 + ... + 300505250527.

It is an arithmetic number, because the mean of its divisors is an integer number (450757875789).

Almost surely, 2^{1202021002102} is an apocalyptic number.

1202021002102 is a deficient number, since it is larger than the sum of its proper divisors (601010501054).

1202021002102 is an equidigital number, since it uses as much as digits as its factorization.

1202021002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601010501053.

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

Adding to 1202021002102 its reverse (2012001202021), we get a palindrome (3214022204123).

The spelling of 1202021002102 in words is "one trillion, two hundred two billion, twenty-one million, two thousand, one hundred two".