1100212331220 has 48 divisors (see below), whose sum is σ = 3422882809920. Its totient is φ = 293389954848.

The previous prime is 1100212331203. The next prime is 1100212331237. The reversal of 1100212331220 is 221332120011.

1100212331220 is a `hidden beast` number, since 1 + 100 + 2 + 12 + 331 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (1100212331203) and next prime (1100212331237).

It is a super-3 number, since 3×1100212331220³ (a number of 37 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1100212331193 and 1100212331202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1018714582 + ... + 1018715661.

It is an arithmetic number, because the mean of its divisors is an integer number (71310058540).

Almost surely, 2^{1100212331220} is an apocalyptic number.

1100212331220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100212331220 is an abundant number, since it is smaller than the sum of its proper divisors (2322670478700).

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

1100212331220 is a wasteful number, since it uses less digits than its factorization.

1100212331220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037430261 (or 2037430253 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1100212331220 its reverse (221332120011), we get a palindrome (1321544451231).

The spelling of 1100212331220 in words is "one trillion, one hundred billion, two hundred twelve million, three hundred thirty-one thousand, two hundred twenty".