221260117436 has 12 divisors (see below), whose sum is σ = 387535875720. Its totient is φ = 110535581520.

The previous prime is 221260117387. The next prime is 221260117457. The reversal of 221260117436 is 634711062122.

It is a super-2 number, since 2×221260117436² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221260117396 and 221260117405.

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, 23614031 + ... + 23623398.

It is an arithmetic number, because the mean of its divisors is an integer number (32294656310).

Almost surely, 2^221260117436 is an apocalyptic number.

It is an amenable number.

221260117436 is a deficient number, since it is larger than the sum of its proper divisors (166275758284).

221260117436 is a wasteful number, since it uses less digits than its factorization.

221260117436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47238604 (or 47238602 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 35.

Adding to 221260117436 its reverse (634711062122), we get a palindrome (855971179558).

The spelling of 221260117436 in words is "two hundred twenty-one billion, two hundred sixty million, one hundred seventeen thousand, four hundred thirty-six".