221201120022008 has 16 divisors (see below), whose sum is σ = 474002400047280. Its totient is φ = 94800480009408.

The previous prime is 221201120021929. The next prime is 221201120022059. The reversal of 221201120022008 is 800220021102122.

It is a happy number.

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, 1975010000141 + ... + 1975010000252.

It is an arithmetic number, because the mean of its divisors is an integer number (29625150002955).

Almost surely, 2^{221201120022008} is an apocalyptic number.

221201120022008 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

221201120022008 is an abundant number, since it is smaller than the sum of its proper divisors (252801280025272).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221201120022008 is a wasteful number, since it uses less digits than its factorization.

221201120022008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3950020000406 (or 3950020000402 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

The spelling of 221201120022008 in words is "two hundred twenty-one trillion, two hundred one billion, one hundred twenty million, twenty-two thousand, eight".