11212212110001 has 64 divisors (see below), whose sum is σ = 17370028800000. Its totient is φ = 6300535228416.

The previous prime is 11212212109993. The next prime is 11212212110023. The reversal of 11212212110001 is 10001121221211.

It is a happy number.

It is not a de Polignac number, because 11212212110001 - 2³ = 11212212109993 is a prime.

It is a super-3 number, since 3×11212212110001³ (a number of 40 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (11212212110041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2563961251 + ... + 2563965623.

It is an arithmetic number, because the mean of its divisors is an integer number (271406700000).

Almost surely, 2^{11212212110001} is an apocalyptic number.

It is an amenable number.

11212212110001 is a deficient number, since it is larger than the sum of its proper divisors (6157816689999).

11212212110001 is a wasteful number, since it uses less digits than its factorization.

11212212110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7158.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11212212110001 its reverse (10001121221211), we get a palindrome (21213333331212).

The spelling of 11212212110001 in words is "eleven trillion, two hundred twelve billion, two hundred twelve million, one hundred ten thousand, one".