222101212010021 has 8 divisors (see below), whose sum is σ = 222285523034784. Its totient is φ = 221916908682000.

The previous prime is 222101212009979. The next prime is 222101212010063. The reversal of 222101212010021 is 120010212101222.

It is an interprime number because it is at equal distance from previous prime (222101212009979) and next prime (222101212010063).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222101212010021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222101212019021) 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, 56549546 + ... + 60349428.

It is an arithmetic number, because the mean of its divisors is an integer number (27785690379348).

Almost surely, 2^{222101212010021} is an apocalyptic number.

It is an amenable number.

222101212010021 is a deficient number, since it is larger than the sum of its proper divisors (184311024763).

222101212010021 is a wasteful number, since it uses less digits than its factorization.

222101212010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3848371.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222101212010021 its reverse (120010212101222), we get a palindrome (342111424111243).

The spelling of 222101212010021 in words is "two hundred twenty-two trillion, one hundred one billion, two hundred twelve million, ten thousand, twenty-one".