11020112100 has 144 divisors (see below), whose sum is σ = 37292404800. Its totient is φ = 2784015360.

The previous prime is 11020112053. The next prime is 11020112101. The reversal of 11020112100 is 121102011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (11020112101) 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, 56109 + ... + 158708.

Almost surely, 2^11020112100 is an apocalyptic number.

11020112100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020112100 is an abundant number, since it is smaller than the sum of its proper divisors (26272292700).

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

11020112100 is a wasteful number, since it uses less digits than its factorization.

11020112100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214859 (or 214846 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11020112100 its reverse (121102011), we get a palindrome (11141214111).

The spelling of 11020112100 in words is "eleven billion, twenty million, one hundred twelve thousand, one hundred".