1002122122111 has 8 divisors (see below), whose sum is σ = 1093234714704. Its totient is φ = 911011293120.

The previous prime is 1002122122103. The next prime is 1002122122129. The reversal of 1002122122111 is 1112212212001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002122122111 - 2³ = 1002122122103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002122122711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 933505 + ... + 1695781.

It is an arithmetic number, because the mean of its divisors is an integer number (136654339338).

Almost surely, 2^{1002122122111} is an apocalyptic number.

1002122122111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1002122122111 is a deficient number, since it is larger than the sum of its proper divisors (91112592593).

1002122122111 is a wasteful number, since it uses less digits than its factorization.

1002122122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881801.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1002122122111 its reverse (1112212212001), we get a palindrome (2114334334112).

The spelling of 1002122122111 in words is "one trillion, two billion, one hundred twenty-two million, one hundred twenty-two thousand, one hundred eleven".