21021212001002 has 8 divisors (see below), whose sum is σ = 32902766610336. Its totient is φ = 10053623130892.

The previous prime is 21021212000993. The next prime is 21021212001059. The reversal of 21021212001002 is 20010021212012.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228491434748 + ... + 228491434839.

It is an arithmetic number, because the mean of its divisors is an integer number (4112845826292).

Almost surely, 2^{21021212001002} is an apocalyptic number.

21021212001002 is a deficient number, since it is larger than the sum of its proper divisors (11881554609334).

21021212001002 is a wasteful number, since it uses less digits than its factorization.

21021212001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456982869612.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21021212001002 its reverse (20010021212012), we get a palindrome (41031233213014).

The spelling of 21021212001002 in words is "twenty-one trillion, twenty-one billion, two hundred twelve million, one thousand, two".