2152211050242 has 192 divisors, whose sum is σ = 5218515993600. Its totient is φ = 635566694400.

The previous prime is 2152211050217. The next prime is 2152211050279. The reversal of 2152211050242 is 2420501122512.

2152211050242 is a `hidden beast` number, since 2 + 1 + 5 + 2 + 2 + 110 + 502 + 42 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1389418884 + ... + 1389420432.

It is an arithmetic number, because the mean of its divisors is an integer number (27179770800).

Almost surely, 2^{2152211050242} is an apocalyptic number.

2152211050242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2152211050242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2609257996800).

2152211050242 is an abundant number, since it is smaller than the sum of its proper divisors (3066304943358).

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

2152211050242 is a wasteful number, since it uses less digits than its factorization.

2152211050242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2729 (or 2726 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

Adding to 2152211050242 its reverse (2420501122512), we get a palindrome (4572712172754).

The spelling of 2152211050242 in words is "two trillion, one hundred fifty-two billion, two hundred eleven million, fifty thousand, two hundred forty-two".