222020112101021 has 16 divisors (see below), whose sum is σ = 239357042756160. Its totient is φ = 204720180295680.

The previous prime is 222020112100999. The next prime is 222020112101089. The reversal of 222020112101021 is 120101211020222.

It is a cyclic number.

It is not a de Polignac number, because 222020112101021 - 2²² = 222020107906717 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 (222020112301021) 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, 68734610 + ... + 71892188.

It is an arithmetic number, because the mean of its divisors is an integer number (14959815172260).

Almost surely, 2^{222020112101021} is an apocalyptic number.

It is an amenable number.

222020112101021 is a deficient number, since it is larger than the sum of its proper divisors (17336930655139).

222020112101021 is a wasteful number, since it uses less digits than its factorization.

222020112101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163436.

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

Adding to 222020112101021 its reverse (120101211020222), we get a palindrome (342121323121243).

The spelling of 222020112101021 in words is "two hundred twenty-two trillion, twenty billion, one hundred twelve million, one hundred one thousand, twenty-one".