1122121002 has 16 divisors (see below), whose sum is σ = 2245256640. Its totient is φ = 373871232.

The previous prime is 1122120997. The next prime is 1122121031. The reversal of 1122121002 is 2001212211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27502 + ... + 54777.

It is an arithmetic number, because the mean of its divisors is an integer number (140328540).

Almost surely, 2^1122121002 is an apocalyptic number.

1122121002 is an abundant number, since it is smaller than the sum of its proper divisors (1123135638).

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

1122121002 is a wasteful number, since it uses less digits than its factorization.

1122121002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84557.

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

The square root of 1122121002 is about 33498.0746013857. The cubic root of 1122121002 is about 1039.1539599853.

Adding to 1122121002 its reverse (2001212211), we get a palindrome (3123333213).

It can be divided in two parts, 11221 and 21002, that added together give a palindrome (32223).

The spelling of 1122121002 in words is "one billion, one hundred twenty-two million, one hundred twenty-one thousand, two".