53351101221 has 16 divisors (see below), whose sum is σ = 77605616640. Its totient is φ = 32332327920.

The previous prime is 53351101217. The next prime is 53351101247. The reversal of 53351101221 is 12210115335.

It is not a de Polignac number, because 53351101221 - 2² = 53351101217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53351101191 and 53351101200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53351101021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 973866 + ... + 1027188.

It is an arithmetic number, because the mean of its divisors is an integer number (4850351040).

Almost surely, 2^53351101221 is an apocalyptic number.

It is an amenable number.

53351101221 is a deficient number, since it is larger than the sum of its proper divisors (24254515419).

53351101221 is a wasteful number, since it uses less digits than its factorization.

53351101221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83656.

The product of its (nonzero) digits is 900, while the sum is 24.

Adding to 53351101221 its reverse (12210115335), we get a palindrome (65561216556).

The spelling of 53351101221 in words is "fifty-three billion, three hundred fifty-one million, one hundred one thousand, two hundred twenty-one".