21122120110010 has 128 divisors (see below), whose sum is σ = 41061479040000. Its totient is φ = 7794047213568.

The previous prime is 21122120109947. The next prime is 21122120110043. The reversal of 21122120110010 is 1001102122112.

It is a super-2 number, since 2×21122120110010² (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 63 ways as a sum of consecutive naturals, for example, 4543366166 + ... + 4543370814.

It is an arithmetic number, because the mean of its divisors is an integer number (320792805000).

Almost surely, 2^{21122120110010} is an apocalyptic number.

21122120110010 is a deficient number, since it is larger than the sum of its proper divisors (19939358929990).

21122120110010 is a wasteful number, since it uses less digits than its factorization.

21122120110010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6648.

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

Adding to 21122120110010 its reverse (1001102122112), we get a palindrome (22123222232122).

The spelling of 21122120110010 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred twenty million, one hundred ten thousand, ten".