21112212002 has 32 divisors (see below), whose sum is σ = 36796377600. Its totient is φ = 8898292800.

The previous prime is 21112211993. The next prime is 21112212067. The reversal of 21112212002 is 20021221112.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 160583 + ... + 260789.

It is an arithmetic number, because the mean of its divisors is an integer number (1149886800).

Almost surely, 2^21112212002 is an apocalyptic number.

21112212002 is a deficient number, since it is larger than the sum of its proper divisors (15684165598).

21112212002 is a wasteful number, since it uses less digits than its factorization.

21112212002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100466.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21112212002 its reverse (20021221112), we get a palindrome (41133433114).

The spelling of 21112212002 in words is "twenty-one billion, one hundred twelve million, two hundred twelve thousand, two".