10121012002 has 8 divisors (see below), whose sum is σ = 15183600300. Its totient is φ = 5059811904.

The previous prime is 10121011987. The next prime is 10121012003. The reversal of 10121012002 is 20021012101.

It can be written as a sum of positive squares in 2 ways, for example, as 9802782081 + 318229921 = 99009^2 + 17839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 10121012002.

It is not an unprimeable number, because it can be changed into a prime (10121012003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328627 + ... + 358102.

Almost surely, 2^10121012002 is an apocalyptic number.

10121012002 is a deficient number, since it is larger than the sum of its proper divisors (5062588298).

10121012002 is an equidigital number, since it uses as much as digits as its factorization.

10121012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 694100.

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

Adding to 10121012002 its reverse (20021012101), we get a palindrome (30142024103).

Subtracting 10121012002 from its reverse (20021012101), we obtain a palindrome (9900000099).

It can be divided in two parts, 1012101 and 2002, that multiplied together give a palindrome (2026226202).

The spelling of 10121012002 in words is "ten billion, one hundred twenty-one million, twelve thousand, two".