2222100101021 has 16 divisors (see below), whose sum is σ = 2251663083648. Its totient is φ = 2192760460800.

The previous prime is 2222100100963. The next prime is 2222100101027. The reversal of 2222100101021 is 1201010012222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2222100101021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2222100100987 and 2222100101005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2222100101027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17864981 + ... + 17988933.

It is an arithmetic number, because the mean of its divisors is an integer number (140728942728).

Almost surely, 2^{2222100101021} is an apocalyptic number.

It is an amenable number.

2222100101021 is a deficient number, since it is larger than the sum of its proper divisors (29562982627).

2222100101021 is a wasteful number, since it uses less digits than its factorization.

2222100101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124852.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2222100101021 its reverse (1201010012222), we get a palindrome (3423110113243).

The spelling of 2222100101021 in words is "two trillion, two hundred twenty-two billion, one hundred million, one hundred one thousand, twenty-one".