221411635023416 has 8 divisors (see below), whose sum is σ = 415146815668920. Its totient is φ = 110705817511704.

The previous prime is 221411635023407. The next prime is 221411635023421. The reversal of 221411635023416 is 614320536114122.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×221411635023416² (a number of 29 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 as a sum of consecutive naturals, namely, 13838227188956 + ... + 13838227188971.

It is an arithmetic number, because the mean of its divisors is an integer number (51893351958615).

Almost surely, 2^{221411635023416} is an apocalyptic number.

It is an amenable number.

221411635023416 is a deficient number, since it is larger than the sum of its proper divisors (193735180645504).

221411635023416 is a wasteful number, since it uses less digits than its factorization.

221411635023416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27676454377933 (or 27676454377929 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 221411635023416 in words is "two hundred twenty-one trillion, four hundred eleven billion, six hundred thirty-five million, twenty-three thousand, four hundred sixteen".