2220222102021 has 128 divisors (see below), whose sum is σ = 4182552391680. Its totient is φ = 1130426668800.

The previous prime is 2220222101917. The next prime is 2220222102053. The reversal of 2220222102021 is 1202012220222.

It is a de Polignac number, because none of the positive numbers 2^k-2220222102021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2220222101985 and 2220222102003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220222101021) 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 127 ways as a sum of consecutive naturals, for example, 111609486 + ... + 111629376.

It is an arithmetic number, because the mean of its divisors is an integer number (32676190560).

Almost surely, 2^{2220222102021} is an apocalyptic number.

2220222102021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2220222102021 is a deficient number, since it is larger than the sum of its proper divisors (1962330289659).

2220222102021 is a wasteful number, since it uses less digits than its factorization.

2220222102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20984 (or 20978 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 2220222102021 its reverse (1202012220222), we get a palindrome (3422234322243).

The spelling of 2220222102021 in words is "two trillion, two hundred twenty billion, two hundred twenty-two million, one hundred two thousand, twenty-one".