20100202002 has 20 divisors (see below), whose sum is σ = 45039341886. Its totient is φ = 6700067280.

The previous prime is 20100201983. The next prime is 20100202091. The reversal of 20100202002 is 20020200102.

It can be written as a sum of positive squares in only one way, i.e., 18154598121 + 1945603881 = 134739^2 + 44109^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 62037499 + ... + 62037822.

Almost surely, 2^20100202002 is an apocalyptic number.

20100202002 is an abundant number, since it is smaller than the sum of its proper divisors (24939139884).

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

20100202002 is a wasteful number, since it uses less digits than its factorization.

20100202002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124075335 (or 124075326 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 20100202002 its reverse (20020200102), we get a palindrome (40120402104).

The spelling of 20100202002 in words is "twenty billion, one hundred million, two hundred two thousand, two".