50051131111212 has 384 divisors, whose sum is σ = 153119151144960. Its totient is φ = 12346457840640.

The previous prime is 50051131111181. The next prime is 50051131111297. The reversal of 50051131111212 is 21211113115005.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2347713489 + ... + 2347734807.

It is an arithmetic number, because the mean of its divisors is an integer number (398747789440).

Almost surely, 2^{50051131111212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50051131111212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76559575572480).

50051131111212 is an abundant number, since it is smaller than the sum of its proper divisors (103068020033748).

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

50051131111212 is a wasteful number, since it uses less digits than its factorization.

50051131111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23021 (or 23019 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 24.

Adding to 50051131111212 its reverse (21211113115005), we get a palindrome (71262244226217).

The spelling of 50051131111212 in words is "fifty trillion, fifty-one billion, one hundred thirty-one million, one hundred eleven thousand, two hundred twelve".