21012011100022 has 8 divisors (see below), whose sum is σ = 31539708338256. Its totient is φ = 10498774987272.

The previous prime is 21012011099999. The next prime is 21012011100089. The reversal of 21012011100022 is 22000111021012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21012011100022² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21012011099975 and 21012011100011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3615277738 + ... + 3615283549.

It is an arithmetic number, because the mean of its divisors is an integer number (3942463542282).

Almost surely, 2^{21012011100022} is an apocalyptic number.

21012011100022 is a deficient number, since it is larger than the sum of its proper divisors (10527697238234).

21012011100022 is a wasteful number, since it uses less digits than its factorization.

21012011100022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7230562742.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21012011100022 its reverse (22000111021012), we get a palindrome (43012122121034).

The spelling of 21012011100022 in words is "twenty-one trillion, twelve billion, eleven million, one hundred thousand, twenty-two".