20210001102002 has 32 divisors (see below), whose sum is σ = 30543590816640. Its totient is φ = 10029133128960.

The previous prime is 20210001101987. The next prime is 20210001102007. The reversal of 20210001102002 is 20020110001202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20210001102007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252936074 + ... + 253015962.

It is an arithmetic number, because the mean of its divisors is an integer number (954487213020).

Almost surely, 2^{20210001102002} is an apocalyptic number.

20210001102002 is a deficient number, since it is larger than the sum of its proper divisors (10333589714638).

20210001102002 is a wasteful number, since it uses less digits than its factorization.

20210001102002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81938.

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

Adding to 20210001102002 its reverse (20020110001202), we get a palindrome (40230111103204).

The spelling of 20210001102002 in words is "twenty trillion, two hundred ten billion, one million, one hundred two thousand, two".