4221707843997 has 24 divisors (see below), whose sum is σ = 6969477917376. Its totient is φ = 2412297377856.

The previous prime is 4221707843987. The next prime is 4221707843999. The reversal of 4221707843997 is 7993487071224.

4221707843997 is a `hidden beast` number, since 4 + 2 + 2 + 170 + 78 + 4 + 399 + 7 = 666.

It is not a de Polignac number, because 4221707843997 - 2⁴ = 4221707843981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221707843999) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46303 + ... + 2906124.

It is an arithmetic number, because the mean of its divisors is an integer number (290394913224).

Almost surely, 2^{4221707843997} is an apocalyptic number.

It is an amenable number.

4221707843997 is a deficient number, since it is larger than the sum of its proper divisors (2747770073379).

4221707843997 is a wasteful number, since it uses less digits than its factorization.

4221707843997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2975137 (or 2975134 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 63.

The spelling of 4221707843997 in words is "four trillion, two hundred twenty-one billion, seven hundred seven million, eight hundred forty-three thousand, nine hundred ninety-seven".