10201121002 has 4 divisors (see below), whose sum is σ = 15301681506. Its totient is φ = 5100560500.

The previous prime is 10201120987. The next prime is 10201121011. The reversal of 10201121002 is 20012110201.

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

It can be written as a sum of positive squares in only one way, i.e., 9686693241 + 514427761 = 98421^2 + 22681^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10201121002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2550280249 + ... + 2550280252.

Almost surely, 2^10201121002 is an apocalyptic number.

10201121002 is a deficient number, since it is larger than the sum of its proper divisors (5100560504).

10201121002 is an equidigital number, since it uses as much as digits as its factorization.

10201121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5100560503.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10201121002 its reverse (20012110201), we get a palindrome (30213231203).

The spelling of 10201121002 in words is "ten billion, two hundred one million, one hundred twenty-one thousand, two".