122891631284 has 24 divisors (see below), whose sum is σ = 218291299968. Its totient is φ = 60522865920.

The previous prime is 122891631283. The next prime is 122891631299. The reversal of 122891631284 is 482136198221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122891631283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4402997 + ... + 4430819.

It is an arithmetic number, because the mean of its divisors is an integer number (9095470832).

Almost surely, 2^122891631284 is an apocalyptic number.

It is an amenable number.

122891631284 is a deficient number, since it is larger than the sum of its proper divisors (95399668684).

122891631284 is a wasteful number, since it uses less digits than its factorization.

122891631284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44375 (or 44373 counting only the distinct ones).

The product of its digits is 331776, while the sum is 47.

The spelling of 122891631284 in words is "one hundred twenty-two billion, eight hundred ninety-one million, six hundred thirty-one thousand, two hundred eighty-four".