51111222630302 has 8 divisors (see below), whose sum is σ = 76667281052112. Its totient is φ = 25555462279600.

The previous prime is 51111222630239. The next prime is 51111222630331. The reversal of 51111222630302 is 20303622211115.

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

It is a super-2 number, since 2×51111222630302² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74088599 + ... + 74775282.

It is an arithmetic number, because the mean of its divisors is an integer number (9583410131514).

Almost surely, 2^{51111222630302} is an apocalyptic number.

51111222630302 is a deficient number, since it is larger than the sum of its proper divisors (25556058421810).

51111222630302 is a wasteful number, since it uses less digits than its factorization.

51111222630302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149035554.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 51111222630302 its reverse (20303622211115), we get a palindrome (71414844841417).

The spelling of 51111222630302 in words is "fifty-one trillion, one hundred eleven billion, two hundred twenty-two million, six hundred thirty thousand, three hundred two".