11020121400 has 48 divisors (see below), whose sum is σ = 34162378200. Its totient is φ = 2938698880.

The previous prime is 11020121393. The next prime is 11020121449. The reversal of 11020121400 is 412102011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9182835 + ... + 9184034.

Almost surely, 2^11020121400 is an apocalyptic number.

11020121400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020121400 is an abundant number, since it is smaller than the sum of its proper divisors (23142256800).

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

11020121400 is a wasteful number, since it uses less digits than its factorization.

11020121400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18366888 (or 18366879 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11020121400 its reverse (412102011), we get a palindrome (11432223411).

The spelling of 11020121400 in words is "eleven billion, twenty million, one hundred twenty-one thousand, four hundred".