21122002100022 has 16 divisors (see below), whose sum is σ = 44728945623792. Its totient is φ = 6626510462720.

The previous prime is 21122002100021. The next prime is 21122002100093. The reversal of 21122002100022 is 22000120022112.

It is a super-2 number, since 2×21122002100022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21122002099974 and 21122002100010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21122002100021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103539225879 + ... + 103539226082.

It is an arithmetic number, because the mean of its divisors is an integer number (2795559101487).

Almost surely, 2^{21122002100022} is an apocalyptic number.

21122002100022 is an abundant number, since it is smaller than the sum of its proper divisors (23606943523770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21122002100022 is a wasteful number, since it uses less digits than its factorization.

21122002100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207078451983.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21122002100022 its reverse (22000120022112), we get a palindrome (43122122122134).

The spelling of 21122002100022 in words is "twenty-one trillion, one hundred twenty-two billion, two million, one hundred thousand, twenty-two".