21110212021002 has 64 divisors (see below), whose sum is σ = 48143546446464. Its totient is φ = 6113262919680.

The previous prime is 21110212020941. The next prime is 21110212021097. The reversal of 21110212021002 is 20012021201112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 122419002 + ... + 122591322.

It is an arithmetic number, because the mean of its divisors is an integer number (752242913226).

Almost surely, 2^{21110212021002} is an apocalyptic number.

21110212021002 is an abundant number, since it is smaller than the sum of its proper divisors (27033334425462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21110212021002 is a wasteful number, since it uses less digits than its factorization.

21110212021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264743.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 21110212021002 its reverse (20012021201112), we get a palindrome (41122233222114).

The spelling of 21110212021002 in words is "twenty-one trillion, one hundred ten billion, two hundred twelve million, twenty-one thousand, two".