51121322 has 16 divisors (see below), whose sum is σ = 87920640. Its totient is φ = 21838128.

The previous prime is 51121307. The next prime is 51121337. The reversal of 51121322 is 22312115.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51121307) and next prime (51121337).

It is a super-2 number, since 2×51121322² = 5226779126055368, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51121322.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322 + ... + 10197.

It is an arithmetic number, because the mean of its divisors is an integer number (5495040).

Almost surely, 2^51121322 is an apocalyptic number.

51121322 is a deficient number, since it is larger than the sum of its proper divisors (36799318).

51121322 is a wasteful number, since it uses less digits than its factorization.

51121322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11845.

The product of its digits is 120, while the sum is 17.

The square root of 51121322 is about 7149.9176219031. The cubic root of 51121322 is about 371.1368055710.

Adding to 51121322 its reverse (22312115), we get a palindrome (73433437).

The spelling of 51121322 in words is "fifty-one million, one hundred twenty-one thousand, three hundred twenty-two".