1001211211112 has 32 divisors (see below), whose sum is σ = 2148768673920. Its totient is φ = 428427303360.

The previous prime is 1001211211103. The next prime is 1001211211127. The reversal of 1001211211112 is 2111121121001.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 13780439 + ... + 13852902.

It is an arithmetic number, because the mean of its divisors is an integer number (67149021060).

Almost surely, 2^{1001211211112} is an apocalyptic number.

It is an amenable number.

1001211211112 is an abundant number, since it is smaller than the sum of its proper divisors (1147557462808).

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

1001211211112 is a wasteful number, since it uses less digits than its factorization.

1001211211112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27634001 (or 27633997 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 1001211211112 its reverse (2111121121001), we get a palindrome (3112332332113).

The spelling of 1001211211112 in words is "one trillion, one billion, two hundred eleven million, two hundred eleven thousand, one hundred twelve".