1011210120 has 48 divisors (see below), whose sum is σ = 3286434060. Its totient is φ = 269655936.

The previous prime is 1011210119. The next prime is 1011210143. The reversal of 1011210120 is 210121101.

It is a happy number.

1011210120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 896762916 + 114447204 = 29946^2 + 10698^2 .

It is a super-3 number, since 3×1011210120³ (a number of 28 digits) contains 333 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1404099 + ... + 1404818.

Almost surely, 2^1011210120 is an apocalyptic number.

1011210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011210120 is an abundant number, since it is smaller than the sum of its proper divisors (2275223940).

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

1011210120 is a wasteful number, since it uses less digits than its factorization.

1011210120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2808934 (or 2808927 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 1011210120 is about 31799.5301852087. The cubic root of 1011210120 is about 1003.7228300046.

Adding to 1011210120 its reverse (210121101), we get a palindrome (1221331221).

The spelling of 1011210120 in words is "one billion, eleven million, two hundred ten thousand, one hundred twenty".