1212111010110 has 768 divisors, whose sum is σ = 4126175520768. Its totient is φ = 223824384000.

The previous prime is 1212111010051. The next prime is 1212111010111. The reversal of 1212111010110 is 110101112121.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212111010111) by changing a digit.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 785553999 + ... + 785555541.

It is an arithmetic number, because the mean of its divisors is an integer number (5372624376).

Almost surely, 2^{1212111010110} is an apocalyptic number.

1212111010110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212111010110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2063087760384).

1212111010110 is an abundant number, since it is smaller than the sum of its proper divisors (2914064510658).

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

1212111010110 is a wasteful number, since it uses less digits than its factorization.

1212111010110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1722 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1212111010110 its reverse (110101112121), we get a palindrome (1322212122231).

The spelling of 1212111010110 in words is "one trillion, two hundred twelve billion, one hundred eleven million, ten thousand, one hundred ten".