2111121022004 has 12 divisors (see below), whose sum is σ = 3713804521728. Its totient is φ = 1050034015800.

The previous prime is 2111121022001. The next prime is 2111121022033. The reversal of 2111121022004 is 4002201211112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111121022001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1381622942 + ... + 1381624469.

It is an arithmetic number, because the mean of its divisors is an integer number (309483710144).

Almost surely, 2^{2111121022004} is an apocalyptic number.

It is an amenable number.

2111121022004 is a deficient number, since it is larger than the sum of its proper divisors (1602683499724).

2111121022004 is a wasteful number, since it uses less digits than its factorization.

2111121022004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2763247606 (or 2763247604 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 2111121022004 its reverse (4002201211112), we get a palindrome (6113322233116).

The spelling of 2111121022004 in words is "two trillion, one hundred eleven billion, one hundred twenty-one million, twenty-two thousand, four".