21001201101002 has 16 divisors (see below), whose sum is σ = 31865787115200. Its totient is φ = 10379701544928.

The previous prime is 21001201100993. The next prime is 21001201101011. The reversal of 21001201101002 is 20010110210012.

It is an interprime number because it is at equal distance from previous prime (21001201100993) and next prime (21001201101011).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107272502 + ... + 107468097.

It is an arithmetic number, because the mean of its divisors is an integer number (1991611694700).

Almost surely, 2^{21001201101002} is an apocalyptic number.

21001201101002 is a deficient number, since it is larger than the sum of its proper divisors (10864586014198).

21001201101002 is a wasteful number, since it uses less digits than its factorization.

21001201101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214741165.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21001201101002 its reverse (20010110210012), we get a palindrome (41011311311014).

The spelling of 21001201101002 in words is "twenty-one trillion, one billion, two hundred one million, one hundred one thousand, two".