11211222010005 has 32 divisors (see below), whose sum is σ = 19931200139520. Its totient is φ = 5979276768960.

The previous prime is 11211222010003. The next prime is 11211222010007. The reversal of 11211222010005 is 50001022211211.

It is an interprime number because it is at equal distance from previous prime (11211222010003) and next prime (11211222010007).

It is not a de Polignac number, because 11211222010005 - 2¹ = 11211222010003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11211222010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211222010003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35691664 + ... + 36004406.

It is an arithmetic number, because the mean of its divisors is an integer number (622850004360).

Almost surely, 2^{11211222010005} is an apocalyptic number.

11211222010005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11211222010005 is a deficient number, since it is larger than the sum of its proper divisors (8719978129515).

11211222010005 is a wasteful number, since it uses less digits than its factorization.

11211222010005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578298 (or 578292 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 11211222010005 its reverse (50001022211211), we get a palindrome (61212244221216).

The spelling of 11211222010005 in words is "eleven trillion, two hundred eleven billion, two hundred twenty-two million, ten thousand, five".