21121122000122 has 32 divisors (see below), whose sum is σ = 31867447680000. Its totient is φ = 10498795799296.

The previous prime is 21121122000109. The next prime is 21121122000131. The reversal of 21121122000122 is 22100022112112.

It is a super-2 number, since 2×21121122000122² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21121122000122.

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, 1721497004 + ... + 1721509272.

It is an arithmetic number, because the mean of its divisors is an integer number (995857740000).

Almost surely, 2^{21121122000122} is an apocalyptic number.

21121122000122 is a deficient number, since it is larger than the sum of its proper divisors (10746325679878).

21121122000122 is a wasteful number, since it uses less digits than its factorization.

21121122000122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18238.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 21121122000122 its reverse (22100022112112), we get a palindrome (43221144112234).

The spelling of 21121122000122 in words is "twenty-one trillion, one hundred twenty-one billion, one hundred twenty-two million, one hundred twenty-two", and thus it is an aban number.