21211414567108 has 6 divisors (see below), whose sum is σ = 37119975492446. Its totient is φ = 10605707283552.

The previous prime is 21211414567097. The next prime is 21211414567117. The reversal of 21211414567108 is 80176541411212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 14547953815684 + 6663460751424 = 3814178^2 + 2581368^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2651426820885 + ... + 2651426820892.

Almost surely, 2^{21211414567108} is an apocalyptic number.

It is an amenable number.

21211414567108 is a deficient number, since it is larger than the sum of its proper divisors (15908560925338).

21211414567108 is a wasteful number, since it uses less digits than its factorization.

21211414567108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5302853641781 (or 5302853641779 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 43.

The spelling of 21211414567108 in words is "twenty-one trillion, two hundred eleven billion, four hundred fourteen million, five hundred sixty-seven thousand, one hundred eight".