1022121012 has 48 divisors (see below), whose sum is σ = 2714890752. Its totient is φ = 296266080.

The previous prime is 1022121011. The next prime is 1022121043. The reversal of 1022121012 is 2101212201.

1022121012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022121011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165298 + ... + 171369.

It is an arithmetic number, because the mean of its divisors is an integer number (56560224).

Almost surely, 2^1022121012 is an apocalyptic number.

1022121012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1022121012 is an abundant number, since it is smaller than the sum of its proper divisors (1692769740).

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

1022121012 is a wasteful number, since it uses less digits than its factorization.

1022121012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336708 (or 336706 counting only the distinct ones).

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

The square root of 1022121012 is about 31970.6273319746. The cubic root of 1022121012 is about 1007.3199581407.

Adding to 1022121012 its reverse (2101212201), we get a palindrome (3123333213).

The spelling of 1022121012 in words is "one billion, twenty-two million, one hundred twenty-one thousand, twelve".