1021012122 has 32 divisors (see below), whose sum is σ = 2200318848. Its totient is φ = 313983936.

The previous prime is 1021012121. The next prime is 1021012123. The reversal of 1021012122 is 2212101201.

It is an interprime number because it is at equal distance from previous prime (1021012121) and next prime (1021012123).

It is a junction number, because it is equal to n+sod(n) for n = 1021012098 and 1021012107.

It is not an unprimeable number, because it can be changed into a prime (1021012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280003 + ... + 283625.

It is an arithmetic number, because the mean of its divisors is an integer number (68759964).

Almost surely, 2^1021012122 is an apocalyptic number.

1021012122 is an abundant number, since it is smaller than the sum of its proper divisors (1179306726).

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

1021012122 is a wasteful number, since it uses less digits than its factorization.

1021012122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7254.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 1021012122 is about 31953.2803010896. The cubic root of 1021012122 is about 1006.9555488380.

Adding to 1021012122 its reverse (2212101201), we get a palindrome (3233113323).

The spelling of 1021012122 in words is "one billion, twenty-one million, twelve thousand, one hundred twenty-two".