4221899202432 has 128 divisors (see below), whose sum is σ = 11281093528320. Its totient is φ = 1398953779200.

The previous prime is 4221899202407. The next prime is 4221899202457. The reversal of 4221899202432 is 2342029981224.

It is an interprime number because it is at equal distance from previous prime (4221899202407) and next prime (4221899202457).

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52061757 + ... + 52142787.

It is an arithmetic number, because the mean of its divisors is an integer number (88133543190).

Almost surely, 2^{4221899202432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221899202432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5640546764160).

4221899202432 is an abundant number, since it is smaller than the sum of its proper divisors (7059194325888).

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

4221899202432 is a wasteful number, since it uses less digits than its factorization.

4221899202432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81852 (or 81840 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 48.

The spelling of 4221899202432 in words is "four trillion, two hundred twenty-one billion, eight hundred ninety-nine million, two hundred two thousand, four hundred thirty-two".