21122121000110 has 16 divisors (see below), whose sum is σ = 40944419169696. Its totient is φ = 7798936984608.

The previous prime is 21122121000067. The next prime is 21122121000121. The reversal of 21122121000110 is 1100012122112.

It is a super-2 number, since 2×21122121000110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 81238926794 + ... + 81238927053.

It is an arithmetic number, because the mean of its divisors is an integer number (2559026198106).

Almost surely, 2^{21122121000110} is an apocalyptic number.

21122121000110 is a deficient number, since it is larger than the sum of its proper divisors (19822298169586).

21122121000110 is a wasteful number, since it uses less digits than its factorization.

21122121000110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162477853867.

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

Adding to 21122121000110 its reverse (1100012122112), we get a palindrome (22222133122222).

The spelling of 21122121000110 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred ten", and thus it is an aban number.