21101201000002 has 32 divisors (see below), whose sum is σ = 31932793347840. Its totient is φ = 10457331564480.

The previous prime is 21101200999979. The next prime is 21101201000003. The reversal of 21101201000002 is 20000010210112.

It is not an unprimeable number, because it can be changed into a prime (21101201000003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 222753024 + ... + 222847732.

It is an arithmetic number, because the mean of its divisors is an integer number (997899792120).

Almost surely, 2^{21101201000002} is an apocalyptic number.

21101201000002 is a deficient number, since it is larger than the sum of its proper divisors (10831592347838).

21101201000002 is a wasteful number, since it uses less digits than its factorization.

21101201000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96786.

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

Adding to 21101201000002 its reverse (20000010210112), we get a palindrome (41101211210114).

The spelling of 21101201000002 in words is "twenty-one trillion, one hundred one billion, two hundred one million, two", and thus it is an aban number.