1102121200 has 30 divisors (see below), whose sum is σ = 2647847144. Its totient is φ = 440848320.

The previous prime is 1102121173. The next prime is 1102121243. The reversal of 1102121200 is 21212011.

It is a super-2 number, since 2×1102121200² = 2429342278978880000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1377252 + ... + 1378051.

Almost surely, 2^1102121200 is an apocalyptic number.

1102121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102121200 is an abundant number, since it is smaller than the sum of its proper divisors (1545725944).

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

1102121200 is a wasteful number, since it uses less digits than its factorization.

1102121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2755321 (or 2755310 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1102121200 is about 33198.2107951618. The cubic root of 1102121200 is about 1032.9432265448.

Adding to 1102121200 its reverse (21212011), we get a palindrome (1123333211).

It can be divided in two parts, 1 and 102121200, that added together give a palindrome (102121201).

The spelling of 1102121200 in words is "one billion, one hundred two million, one hundred twenty-one thousand, two hundred".