1000212111122 has 16 divisors (see below), whose sum is σ = 1715238832320. Its totient is φ = 428514958608.

The previous prime is 1000212111097. The next prime is 1000212111127. The reversal of 1000212111122 is 2211112120001.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1000212111097 and 1000212111106.

It is not an unprimeable number, because it can be changed into a prime (1000212111127) 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 7 ways as a sum of consecutive naturals, for example, 12239048 + ... + 12320499.

It is an arithmetic number, because the mean of its divisors is an integer number (107202427020).

Almost surely, 2^{1000212111122} is an apocalyptic number.

1000212111122 is a deficient number, since it is larger than the sum of its proper divisors (715026721198).

1000212111122 is a wasteful number, since it uses less digits than its factorization.

1000212111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24562465.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1000212111122 its reverse (2211112120001), we get a palindrome (3211324231123).

The spelling of 1000212111122 in words is "one trillion, two hundred twelve million, one hundred eleven thousand, one hundred twenty-two".