122551004651 has 2 divisors, whose sum is σ = 122551004652. Its totient is φ = 122551004650.

The previous prime is 122551004633. The next prime is 122551004657. The reversal of 122551004651 is 156400155221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122551004651 is a prime.

It is not a weakly prime, because it can be changed into another prime (122551004657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61275502325 + 61275502326.

It is an arithmetic number, because the mean of its divisors is an integer number (61275502326).

Almost surely, 2^122551004651 is an apocalyptic number.

122551004651 is a deficient number, since it is larger than the sum of its proper divisors (1).

122551004651 is an equidigital number, since it uses as much as digits as its factorization.

122551004651 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 32.

Adding to 122551004651 its reverse (156400155221), we get a palindrome (278951159872).

The spelling of 122551004651 in words is "one hundred twenty-two billion, five hundred fifty-one million, four thousand, six hundred fifty-one".