2102221112202 has 24 divisors (see below), whose sum is σ = 4565683100160. Its totient is φ = 699067956840.

The previous prime is 2102221112179. The next prime is 2102221112203. The reversal of 2102221112202 is 2022111222012.

It is a happy number.

2102221112202 is a `hidden beast` number, since 210 + 2 + 221 + 11 + 220 + 2 = 666.

It is a super-3 number, since 3×2102221112202³ (a number of 38 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2102221112203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 139360074 + ... + 139375157.

It is an arithmetic number, because the mean of its divisors is an integer number (190236795840).

Almost surely, 2^{2102221112202} is an apocalyptic number.

2102221112202 is an abundant number, since it is smaller than the sum of its proper divisors (2463461987958).

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

2102221112202 is a wasteful number, since it uses less digits than its factorization.

2102221112202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278735658 (or 278735655 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2102221112202 its reverse (2022111222012), we get a palindrome (4124332334214).

The spelling of 2102221112202 in words is "two trillion, one hundred two billion, two hundred twenty-one million, one hundred twelve thousand, two hundred two".