1021201122 has 48 divisors (see below), whose sum is σ = 2104204608. Its totient is φ = 330308640.

The previous prime is 1021201117. The next prime is 1021201123. The reversal of 1021201122 is 2211021201.

It is a junction number, because it is equal to n+sod(n) for n = 1021201098 and 1021201107.

It is not an unprimeable number, because it can be changed into a prime (1021201123) 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 23 ways as a sum of consecutive naturals, for example, 3882763 + ... + 3883025.

It is an arithmetic number, because the mean of its divisors is an integer number (43837596).

Almost surely, 2^1021201122 is an apocalyptic number.

1021201122 is an abundant number, since it is smaller than the sum of its proper divisors (1083003486).

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

1021201122 is a wasteful number, since it uses less digits than its factorization.

1021201122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535 (or 432 counting only the distinct ones).

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

The square root of 1021201122 is about 31956.2376070776. The cubic root of 1021201122 is about 1007.0176776651.

Adding to 1021201122 its reverse (2211021201), we get a palindrome (3232222323).

The spelling of 1021201122 in words is "one billion, twenty-one million, two hundred one thousand, one hundred twenty-two".