1122010020 has 36 divisors (see below), whose sum is σ = 3403430940. Its totient is φ = 299202624.

The previous prime is 1122010009. The next prime is 1122010031. The reversal of 1122010020 is 200102211.

It is an interprime number because it is at equal distance from previous prime (1122010009) and next prime (1122010031).

It can be written as a sum of positive squares in 2 ways, for example, as 493906176 + 628103844 = 22224^2 + 25062^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 1122009984 and 1122010011.

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 11 ways as a sum of consecutive naturals, for example, 3116515 + ... + 3116874.

Almost surely, 2^1122010020 is an apocalyptic number.

1122010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122010020 is an abundant number, since it is smaller than the sum of its proper divisors (2281420920).

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

1122010020 is a wasteful number, since it uses less digits than its factorization.

1122010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6233404 (or 6233399 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1122010020 is about 33496.4180174537. The cubic root of 1122010020 is about 1039.1197001070.

Adding to 1122010020 its reverse (200102211), we get a palindrome (1322112231).

The spelling of 1122010020 in words is "one billion, one hundred twenty-two million, ten thousand, twenty".