11221110000021 has 16 divisors (see below), whose sum is σ = 15612056603136. Its totient is φ = 7155454926576.

The previous prime is 11221109999969. The next prime is 11221110000029. The reversal of 11221110000021 is 12000001112211.

It is not a de Polignac number, because 11221110000021 - 2⁷ = 11221109999893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11221109999961 and 11221110000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221110000029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26682246 + ... + 27099528.

It is an arithmetic number, because the mean of its divisors is an integer number (975753537696).

Almost surely, 2^{11221110000021} is an apocalyptic number.

It is an amenable number.

11221110000021 is a deficient number, since it is larger than the sum of its proper divisors (4390946603115).

11221110000021 is a wasteful number, since it uses less digits than its factorization.

11221110000021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 807032.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11221110000021 its reverse (12000001112211), we get a palindrome (23221111112232).

The spelling of 11221110000021 in words is "eleven trillion, two hundred twenty-one billion, one hundred ten million, twenty-one", and thus it is an aban number.