2011211122104 has 96 divisors (see below), whose sum is σ = 5462439128640. Its totient is φ = 668509920000.

The previous prime is 2011211122099. The next prime is 2011211122127. The reversal of 2011211122104 is 4012211121102.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36579274 + ... + 36634214.

It is an arithmetic number, because the mean of its divisors is an integer number (56900407590).

Almost surely, 2^{2011211122104} is an apocalyptic number.

2011211122104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2011211122104 is an abundant number, since it is smaller than the sum of its proper divisors (3451228006536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2011211122104 is a wasteful number, since it uses less digits than its factorization.

2011211122104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56381 (or 56374 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 2011211122104 its reverse (4012211121102), we get a palindrome (6023422243206).

The spelling of 2011211122104 in words is "two trillion, eleven billion, two hundred eleven million, one hundred twenty-two thousand, one hundred four".