21122000210122 has 48 divisors (see below), whose sum is σ = 36949010008320. Its totient is φ = 9029396309472.

The previous prime is 21122000210117. The next prime is 21122000210123. The reversal of 21122000210122 is 22101200022112.

It is a happy number.

It is a super-2 number, since 2×21122000210122² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21122000210096 and 21122000210105.

It is not an unprimeable number, because it can be changed into a prime (21122000210123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88820863 + ... + 89058349.

It is an arithmetic number, because the mean of its divisors is an integer number (769771041840).

Almost surely, 2^{21122000210122} is an apocalyptic number.

21122000210122 is a deficient number, since it is larger than the sum of its proper divisors (15827009798198).

21122000210122 is a wasteful number, since it uses less digits than its factorization.

21122000210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239795 (or 239788 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21122000210122 its reverse (22101200022112), we get a palindrome (43223200232234).

The spelling of 21122000210122 in words is "twenty-one trillion, one hundred twenty-two billion, two hundred ten thousand, one hundred twenty-two".