21111020210002 has 32 divisors (see below), whose sum is σ = 33458069329920. Its totient is φ = 9973910587200.

The previous prime is 21111020209949. The next prime is 21111020210087. The reversal of 21111020210002 is 20001202011112.

It is a super-2 number, since 2×21111020210002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35555188 + ... + 36144064.

It is an arithmetic number, because the mean of its divisors is an integer number (1045564666560).

Almost surely, 2^{21111020210002} is an apocalyptic number.

21111020210002 is a deficient number, since it is larger than the sum of its proper divisors (12347049119918).

21111020210002 is a wasteful number, since it uses less digits than its factorization.

21111020210002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602106.

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

Adding to 21111020210002 its reverse (20001202011112), we get a palindrome (41112222221114).

The spelling of 21111020210002 in words is "twenty-one trillion, one hundred eleven billion, twenty million, two hundred ten thousand, two".