22000100021012 has 6 divisors (see below), whose sum is σ = 38500175036778. Its totient is φ = 11000050010504.

The previous prime is 22000100020903. The next prime is 22000100021051. The reversal of 22000100021012 is 21012000100022.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18376962890896 + 3623137130116 = 4286836^2 + 1903454^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22000100020984 and 22000100021002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2750012502623 + ... + 2750012502630.

It is an arithmetic number, because the mean of its divisors is an integer number (6416695839463).

Almost surely, 2^{22000100021012} is an apocalyptic number.

It is an amenable number.

22000100021012 is a deficient number, since it is larger than the sum of its proper divisors (16500075015766).

22000100021012 is a wasteful number, since it uses less digits than its factorization.

22000100021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5500025005257 (or 5500025005255 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22000100021012 its reverse (21012000100022), we get a palindrome (43012100121034).

The spelling of 22000100021012 in words is "twenty-two trillion, one hundred million, twenty-one thousand, twelve".