122630641251 has 24 divisors (see below), whose sum is σ = 164549382480. Its totient is φ = 81235661760.

The previous prime is 122630641249. The next prime is 122630641283. The reversal of 122630641251 is 152146036221.

It is not a de Polignac number, because 122630641251 - 2¹ = 122630641249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122630641051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167299281 + ... + 167300013.

It is an arithmetic number, because the mean of its divisors is an integer number (6856224270).

Almost surely, 2^122630641251 is an apocalyptic number.

122630641251 is a deficient number, since it is larger than the sum of its proper divisors (41918741229).

122630641251 is an frugal number, since it uses more digits than its factorization.

122630641251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907 (or 1576 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

Adding to 122630641251 its reverse (152146036221), we get a palindrome (274776677472).

The spelling of 122630641251 in words is "one hundred twenty-two billion, six hundred thirty million, six hundred forty-one thousand, two hundred fifty-one".