21100222322032 has 40 divisors (see below), whose sum is σ = 46760123874816. Its totient is φ = 9035558291136.

The previous prime is 21100222322021. The next prime is 21100222322033. The reversal of 21100222322032 is 23022322200112.

It is a junction number, because it is equal to n+sod(n) for n = 21100222321994 and 21100222322012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100222322033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76884628 + ... + 77158579.

Almost surely, 2^{21100222322032} is an apocalyptic number.

It is an amenable number.

21100222322032 is an abundant number, since it is smaller than the sum of its proper divisors (25659901552784).

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

21100222322032 is a wasteful number, since it uses less digits than its factorization.

21100222322032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154044445 (or 154044439 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21100222322032 its reverse (23022322200112), we get a palindrome (44122544522144).

The spelling of 21100222322032 in words is "twenty-one trillion, one hundred billion, two hundred twenty-two million, three hundred twenty-two thousand, thirty-two".