21102211001122 has 16 divisors (see below), whose sum is σ = 31791896942400. Its totient is φ = 10504913053680.

The previous prime is 21102211001099. The next prime is 21102211001147. The reversal of 21102211001122 is 22110011220112.

It is a super-2 number, since 2×21102211001122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21102211001096 and 21102211001105.

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, 52322097 + ... + 52723867.

It is an arithmetic number, because the mean of its divisors is an integer number (1986993558900).

Almost surely, 2^{21102211001122} is an apocalyptic number.

21102211001122 is a deficient number, since it is larger than the sum of its proper divisors (10689685941278).

21102211001122 is a wasteful number, since it uses less digits than its factorization.

21102211001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516681.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 21102211001122 its reverse (22110011220112), we get a palindrome (43212222221234).

The spelling of 21102211001122 in words is "twenty-one trillion, one hundred two billion, two hundred eleven million, one thousand, one hundred twenty-two".