11100101021212 has 24 divisors (see below), whose sum is σ = 22203354531456. Its totient is φ = 4756510618608.

The previous prime is 11100101021203. The next prime is 11100101021281. The reversal of 11100101021212 is 21212010100111.

It is a happy number.

It is a super-2 number, since 2×11100101021212² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11100101021192 and 11100101021201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27946498 + ... + 28340905.

It is an arithmetic number, because the mean of its divisors is an integer number (925139772144).

Almost surely, 2^{11100101021212} is an apocalyptic number.

It is an amenable number.

11100101021212 is an abundant number, since it is smaller than the sum of its proper divisors (11103253510244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11100101021212 is a wasteful number, since it uses less digits than its factorization.

11100101021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56294457 (or 56294455 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11100101021212 its reverse (21212010100111), we get a palindrome (32312111121323).

The spelling of 11100101021212 in words is "eleven trillion, one hundred billion, one hundred one million, twenty-one thousand, two hundred twelve".