21122111010002 has 8 divisors (see below), whose sum is σ = 33350701594800. Its totient is φ = 10005210478404.

The previous prime is 21122111010001. The next prime is 21122111010019. The reversal of 21122111010002 is 20001011122112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21122111010002² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21122111010001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277922513252 + ... + 277922513327.

It is an arithmetic number, because the mean of its divisors is an integer number (4168837699350).

Almost surely, 2^{21122111010002} is an apocalyptic number.

21122111010002 is a deficient number, since it is larger than the sum of its proper divisors (12228590584798).

21122111010002 is a wasteful number, since it uses less digits than its factorization.

21122111010002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555845026600.

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

Adding to 21122111010002 its reverse (20001011122112), we get a palindrome (41123122132114).

It can be divided in two parts, 2112211 and 1010002, that added together give a palindrome (3122213).

The spelling of 21122111010002 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred eleven million, ten thousand, two".