4221555102 has 96 divisors (see below), whose sum is σ = 9710917632. Its totient is φ = 1322747712.

The previous prime is 4221555101. The next prime is 4221555103. The reversal of 4221555102 is 2015551224.

4221555102 is a `hidden beast` number, since 4 + 2 + 2 + 1 + 555 + 102 = 666.

It is an interprime number because it is at equal distance from previous prime (4221555101) and next prime (4221555103).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4221555101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6954483 + ... + 6955089.

It is an arithmetic number, because the mean of its divisors is an integer number (101155392).

Almost surely, 2^4221555102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221555102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4855458816).

4221555102 is an abundant number, since it is smaller than the sum of its proper divisors (5489362530).

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

4221555102 is a wasteful number, since it uses less digits than its factorization.

4221555102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 899 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 4221555102 is about 64973.4953808089. The cubic root of 4221555102 is about 1616.1840661227.

The spelling of 4221555102 in words is "four billion, two hundred twenty-one million, five hundred fifty-five thousand, one hundred two".