1000021122111 has 8 divisors (see below), whose sum is σ = 1454576177664. Its totient is φ = 606073407320.

The previous prime is 1000021122073. The next prime is 1000021122119. The reversal of 1000021122111 is 1112211200001.

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 1000021122111 - 2⁶ = 1000021122047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000021122119) 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, 15151835151 + ... + 15151835216.

It is an arithmetic number, because the mean of its divisors is an integer number (181822022208).

Almost surely, 2^{1000021122111} is an apocalyptic number.

1000021122111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1000021122111 is a deficient number, since it is larger than the sum of its proper divisors (454555055553).

1000021122111 is a wasteful number, since it uses less digits than its factorization.

1000021122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30303670381.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1000021122111 its reverse (1112211200001), we get a palindrome (2112232322112).

The spelling of 1000021122111 in words is "one trillion, twenty-one million, one hundred twenty-two thousand, one hundred eleven".