1000021122118 has 32 divisors (see below), whose sum is σ = 1513951236000. Its totient is φ = 495386950656.

The previous prime is 1000021122073. The next prime is 1000021122119. The reversal of 1000021122118 is 8112211200001.

It is a junction number, because it is equal to n+sod(n) for n = 1000021122095 and 1000021122104.

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 15 ways as a sum of consecutive naturals, for example, 417893130 + ... + 417895522.

It is an arithmetic number, because the mean of its divisors is an integer number (47310976125).

Almost surely, 2^{1000021122118} is an apocalyptic number.

1000021122118 is a deficient number, since it is larger than the sum of its proper divisors (513930113882).

1000021122118 is a wasteful number, since it uses less digits than its factorization.

1000021122118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5016.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 1000021122118 its reverse (8112211200001), we get a palindrome (9112232322119).

The spelling of 1000021122118 in words is "one trillion, twenty-one million, one hundred twenty-two thousand, one hundred eighteen".