1122101020 has 12 divisors (see below), whose sum is σ = 2356412184. Its totient is φ = 448840400.

The previous prime is 1122101003. The next prime is 1122101021. The reversal of 1122101020 is 201012211.

It is a super-2 number, since 2×1122101020² = 2518221398170080800, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1122100988 and 1122101006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122101021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28052506 + ... + 28052545.

It is an arithmetic number, because the mean of its divisors is an integer number (196367682).

Almost surely, 2^1122101020 is an apocalyptic number.

1122101020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1122101020 is an abundant number, since it is smaller than the sum of its proper divisors (1234311164).

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

1122101020 is a wasteful number, since it uses less digits than its factorization.

1122101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56105060 (or 56105058 counting only the distinct ones).

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

The square root of 1122101020 is about 33497.7763441098. The cubic root of 1122101020 is about 1039.1477917564.

Adding to 1122101020 its reverse (201012211), we get a palindrome (1323113231).

The spelling of 1122101020 in words is "one billion, one hundred twenty-two million, one hundred one thousand, twenty".