21101112012002 has 16 divisors (see below), whose sum is σ = 35719750742400. Its totient is φ = 9260676117840.

The previous prime is 21101112011971. The next prime is 21101112012059. The reversal of 21101112012002 is 20021021110112.

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, 16536921002 + ... + 16536922277.

It is an arithmetic number, because the mean of its divisors is an integer number (2232484421400).

Almost surely, 2^{21101112012002} is an apocalyptic number.

21101112012002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21101112012002 is a deficient number, since it is larger than the sum of its proper divisors (14618638730398).

21101112012002 is a wasteful number, since it uses less digits than its factorization.

21101112012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33073843321.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21101112012002 its reverse (20021021110112), we get a palindrome (41122133122114).

The spelling of 21101112012002 in words is "twenty-one trillion, one hundred one billion, one hundred twelve million, twelve thousand, two".