1210011208128 has 168 divisors, whose sum is σ = 3515681005200. Its totient is φ = 397846327296.

The previous prime is 1210011208117. The next prime is 1210011208129. The reversal of 1210011208128 is 8218021100121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210011208129) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21451450 + ... + 21507782.

It is an arithmetic number, because the mean of its divisors is an integer number (20926672650).

Almost surely, 2^{1210011208128} is an apocalyptic number.

1210011208128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1210011208128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1757840502600).

1210011208128 is an abundant number, since it is smaller than the sum of its proper divisors (2305669797072).

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

1210011208128 is a wasteful number, since it uses less digits than its factorization.

1210011208128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56859 (or 56846 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 27.

Adding to 1210011208128 its reverse (8218021100121), we get a palindrome (9428032308249).

The spelling of 1210011208128 in words is "one trillion, two hundred ten billion, eleven million, two hundred eight thousand, one hundred twenty-eight".