21021011120002 has 8 divisors (see below), whose sum is σ = 31531597987212. Its totient is φ = 10510478457600.

The previous prime is 21021011119987. The next prime is 21021011120017. The reversal of 21021011120002 is 20002111012012.

It is an interprime number because it is at equal distance from previous prime (21021011119987) and next prime (21021011120017).

It can be written as a sum of positive squares in 2 ways, for example, as 18926249885761 + 2094761234241 = 4350431^2 + 1447329^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12567399 + ... + 14141482.

Almost surely, 2^{21021011120002} is an apocalyptic number.

21021011120002 is a deficient number, since it is larger than the sum of its proper divisors (10510586867210).

21021011120002 is a wasteful number, since it uses less digits than its factorization.

21021011120002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27102404.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21021011120002 its reverse (20002111012012), we get a palindrome (41023122132014).

The spelling of 21021011120002 in words is "twenty-one trillion, twenty-one billion, eleven million, one hundred twenty thousand, two".