1211012101182 has 48 divisors (see below), whose sum is σ = 2624680914048. Its totient is φ = 372332731680.

The previous prime is 1211012101141. The next prime is 1211012101183. The reversal of 1211012101182 is 2811012101121.

It is a super-3 number, since 3×1211012101182³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211012101183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 862957 + ... + 1779527.

It is an arithmetic number, because the mean of its divisors is an integer number (54680852376).

Almost surely, 2^{1211012101182} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1211012101182, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1312340457024).

1211012101182 is an abundant number, since it is smaller than the sum of its proper divisors (1413668812866).

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

1211012101182 is a wasteful number, since it uses less digits than its factorization.

1211012101182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 917905 (or 917892 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 21.

The spelling of 1211012101182 in words is "one trillion, two hundred eleven billion, twelve million, one hundred one thousand, one hundred eighty-two".