51302222220122 has 8 divisors (see below), whose sum is σ = 76954136980500. Its totient is φ = 25650843226624.

The previous prime is 51302222220121. The next prime is 51302222220187. The reversal of 51302222220122 is 22102222220315.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 50652813492241 + 649408727881 = 7117079^2 + 805859^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 51302222220091 and 51302222220100.

It is not an unprimeable number, because it can be changed into a prime (51302222220121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133702247 + ... + 134085402.

Almost surely, 2^{51302222220122} is an apocalyptic number.

51302222220122 is a deficient number, since it is larger than the sum of its proper divisors (25651914760378).

51302222220122 is a wasteful number, since it uses less digits than its factorization.

51302222220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267883440.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 51302222220122 its reverse (22102222220315), we get a palindrome (73404444440437).

The spelling of 51302222220122 in words is "fifty-one trillion, three hundred two billion, two hundred twenty-two million, two hundred twenty thousand, one hundred twenty-two".