10021001012002 has 48 divisors (see below), whose sum is σ = 15900302005560. Its totient is φ = 4735852352000.

The previous prime is 10021001011999. The next prime is 10021001012041. The reversal of 10021001012002 is 20021010012001.

It can be written as a sum of positive squares in 4 ways, for example, as 9882906276681 + 138094735321 = 3143709^2 + 371611^2 .

It is a super-2 number, since 2×10021001012002² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10021001012002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54298602 + ... + 54482842.

Almost surely, 2^{10021001012002} is an apocalyptic number.

10021001012002 is a deficient number, since it is larger than the sum of its proper divisors (5879300993558).

10021001012002 is a wasteful number, since it uses less digits than its factorization.

10021001012002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184899 (or 184876 counting only the distinct ones).

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

Adding to 10021001012002 its reverse (20021010012001), we get a palindrome (30042011024003).

It can be divided in two parts, 1002100 and 1012002, that added together give a palindrome (2014102).

The spelling of 10021001012002 in words is "ten trillion, twenty-one billion, one million, twelve thousand, two".