1210111122312 has 32 divisors (see below), whose sum is σ = 3361419784800. Its totient is φ = 403370374032.

The previous prime is 1210111122307. The next prime is 1210111122323. The reversal of 1210111122312 is 2132211110121.

It is a happy number.

1210111122312 is a `hidden beast` number, since 121 + 0 + 111 + 122 + 312 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2801182938 + ... + 2801183369.

It is an arithmetic number, because the mean of its divisors is an integer number (105044368275).

Almost surely, 2^{1210111122312} is an apocalyptic number.

1210111122312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1210111122312 is an abundant number, since it is smaller than the sum of its proper divisors (2151308662488).

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

1210111122312 is a wasteful number, since it uses less digits than its factorization.

1210111122312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5602366322 (or 5602366312 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1210111122312 its reverse (2132211110121), we get a palindrome (3342322232433).

The spelling of 1210111122312 in words is "one trillion, two hundred ten billion, one hundred eleven million, one hundred twenty-two thousand, three hundred twelve".