221207434675492 has 24 divisors (see below), whose sum is σ = 407488346834240. Its totient is φ = 104782220356320.

The previous prime is 221207434675471. The next prime is 221207434675531. The reversal of 221207434675492 is 294576434702122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31026442 + ... + 37484062.

Almost surely, 2^{221207434675492} is an apocalyptic number.

It is an amenable number.

221207434675492 is a deficient number, since it is larger than the sum of its proper divisors (186280912158748).

221207434675492 is a wasteful number, since it uses less digits than its factorization.

221207434675492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6908371 (or 6908369 counting only the distinct ones).

The product of its (nonzero) digits is 40642560, while the sum is 58.

The spelling of 221207434675492 in words is "two hundred twenty-one trillion, two hundred seven billion, four hundred thirty-four million, six hundred seventy-five thousand, four hundred ninety-two".