11211010212120 has 32 divisors (see below), whose sum is σ = 33633030636720. Its totient is φ = 2989602723200.

The previous prime is 11211010212113. The next prime is 11211010212173. The reversal of 11211010212120 is 2121201011211.

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 11211010212120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46712542431 + ... + 46712542670.

Almost surely, 2^{11211010212120} is an apocalyptic number.

11211010212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211010212120 is an abundant number, since it is smaller than the sum of its proper divisors (22422020424600).

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

11211010212120 is a wasteful number, since it uses less digits than its factorization.

11211010212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93425085115 (or 93425085111 counting only the distinct ones).

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

Adding to 11211010212120 its reverse (2121201011211), we get a palindrome (13332211223331).

The spelling of 11211010212120 in words is "eleven trillion, two hundred eleven billion, ten million, two hundred twelve thousand, one hundred twenty".