2222120100021 has 8 divisors (see below), whose sum is σ = 3011397731424. Its totient is φ = 1457127934320.

The previous prime is 2222120100001. The next prime is 2222120100029. The reversal of 2222120100021 is 1200010212222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2222120100021 - 2⁷ = 2222120099893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222120100029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6071366211 + ... + 6071366576.

It is an arithmetic number, because the mean of its divisors is an integer number (376424716428).

Almost surely, 2^{2222120100021} is an apocalyptic number.

It is an amenable number.

2222120100021 is a deficient number, since it is larger than the sum of its proper divisors (789277631403).

2222120100021 is a wasteful number, since it uses less digits than its factorization.

2222120100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12142732851.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 2222120100021 its reverse (1200010212222), we get a palindrome (3422130312243).

The spelling of 2222120100021 in words is "two trillion, two hundred twenty-two billion, one hundred twenty million, one hundred thousand, twenty-one".