2101002222 has 64 divisors (see below), whose sum is σ = 4886189568. Its totient is φ = 595200000.

The previous prime is 2101002193. The next prime is 2101002223. The reversal of 2101002222 is 2222001012.

It is a junction number, because it is equal to n+sod(n) for n = 2101002198 and 2101002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101002223) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 163222 + ... + 175622.

It is an arithmetic number, because the mean of its divisors is an integer number (76346712).

Almost surely, 2^2101002222 is an apocalyptic number.

2101002222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2101002222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2443094784).

2101002222 is an abundant number, since it is smaller than the sum of its proper divisors (2785187346).

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

2101002222 is a wasteful number, since it uses less digits than its factorization.

2101002222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12585.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 2101002222 is about 45836.6907836942. The cubic root of 2101002222 is about 1280.7828507804.

Adding to 2101002222 its reverse (2222001012), we get a palindrome (4323003234).

The spelling of 2101002222 in words is "two billion, one hundred one million, two thousand, two hundred twenty-two".