1002122222211 has 48 divisors (see below), whose sum is σ = 1607928062208. Its totient is φ = 596296209600.

The previous prime is 1002122222191. The next prime is 1002122222219. The reversal of 1002122222211 is 1122222212001.

It is a happy number.

1002122222211 is a `hidden beast` number, since 10 + 0 + 212 + 222 + 221 + 1 = 666.

It is not a de Polignac number, because 1002122222211 - 2⁶ = 1002122222147 is a prime.

It is a super-2 number, since 2×1002122222211² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002122222219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3151650 + ... + 3455016.

It is an arithmetic number, because the mean of its divisors is an integer number (33498501296).

Almost surely, 2^{1002122222211} is an apocalyptic number.

1002122222211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002122222211 is a deficient number, since it is larger than the sum of its proper divisors (605805839997).

1002122222211 is a wasteful number, since it uses less digits than its factorization.

1002122222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303992 (or 303989 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1002122222211 its reverse (1122222212001), we get a palindrome (2124344434212).

The spelling of 1002122222211 in words is "one trillion, two billion, one hundred twenty-two million, two hundred twenty-two thousand, two hundred eleven".