1000021100122 has 16 divisors (see below), whose sum is σ = 1674453936672. Its totient is φ = 443983997520.

The previous prime is 1000021100107. The next prime is 1000021100153. The reversal of 1000021100122 is 2210011200001.

It is a junction number, because it is equal to n+sod(n) for n = 1000021100099 and 1000021100108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 528551433 + ... + 528553324.

It is an arithmetic number, because the mean of its divisors is an integer number (104653371042).

Almost surely, 2^{1000021100122} is an apocalyptic number.

1000021100122 is a deficient number, since it is larger than the sum of its proper divisors (674432836550).

1000021100122 is a wasteful number, since it uses less digits than its factorization.

1000021100122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1057104813.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1000021100122 its reverse (2210011200001), we get a palindrome (3210032300123).

The spelling of 1000021100122 in words is "one trillion, twenty-one million, one hundred thousand, one hundred twenty-two".