10212211211100 has 144 divisors (see below), whose sum is σ = 30502321059840. Its totient is φ = 2635249478400.

The previous prime is 10212211211087. The next prime is 10212211211101. The reversal of 10212211211100 is 111211221201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 10212211211100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212211211101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 278600374 + ... + 278637026.

Almost surely, 2^{10212211211100} is an apocalyptic number.

10212211211100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10212211211100 is an abundant number, since it is smaller than the sum of its proper divisors (20290109848740).

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

10212211211100 is a wasteful number, since it uses less digits than its factorization.

10212211211100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66660 (or 66653 counting only the distinct ones).

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

Adding to 10212211211100 its reverse (111211221201), we get a palindrome (10323422432301).

The spelling of 10212211211100 in words is "ten trillion, two hundred twelve billion, two hundred eleven million, two hundred eleven thousand, one hundred".