2012210154 has 64 divisors (see below), whose sum is σ = 4765409280. Its totient is φ = 627905520.

The previous prime is 2012210041. The next prime is 2012210171. The reversal of 2012210154 is 4510122102.

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

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 41139 + ... + 75609.

It is an arithmetic number, because the mean of its divisors is an integer number (74459520).

Almost surely, 2^2012210154 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2012210154, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2382704640).

2012210154 is an abundant number, since it is smaller than the sum of its proper divisors (2753199126).

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

2012210154 is a wasteful number, since it uses less digits than its factorization.

2012210154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34552 (or 34546 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 2012210154 is about 44857.6654987751. The cubic root of 2012210154 is about 1262.4798214466.

Adding to 2012210154 its reverse (4510122102), we get a palindrome (6522332256).

It can be divided in two parts, 20122 and 10154, that added together give a square (30276 = 174²).

The spelling of 2012210154 in words is "two billion, twelve million, two hundred ten thousand, one hundred fifty-four".