1101202220 has 12 divisors (see below), whose sum is σ = 2312524704. Its totient is φ = 440480880.

The previous prime is 1101202213. The next prime is 1101202237. The reversal of 1101202220 is 222021011.

It is a happy 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 3 ways as a sum of consecutive naturals, for example, 27530036 + ... + 27530075.

It is an arithmetic number, because the mean of its divisors is an integer number (192710392).

Almost surely, 2^1101202220 is an apocalyptic number.

1101202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101202220 is an abundant number, since it is smaller than the sum of its proper divisors (1211322484).

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

1101202220 is a wasteful number, since it uses less digits than its factorization.

1101202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55060120 (or 55060118 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1101202220 is about 33184.3671025982. The cubic root of 1101202220 is about 1032.6560475646.

Adding to 1101202220 its reverse (222021011), we get a palindrome (1323223231).

The spelling of 1101202220 in words is "one billion, one hundred one million, two hundred two thousand, two hundred twenty".