222000121211001 has 64 divisors (see below), whose sum is σ = 362727559876608. Its totient is φ = 117999259031808.

The previous prime is 222000121210961. The next prime is 222000121211023. The reversal of 222000121211001 is 100112121000222.

It is not a de Polignac number, because 222000121211001 - 2¹⁹ = 222000120686713 is a prime.

It is a super-2 number, since 2×222000121211001² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222000121211081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 30234766 + ... + 36852968.

It is an arithmetic number, because the mean of its divisors is an integer number (5667618123072).

Almost surely, 2^{222000121211001} is an apocalyptic number.

222000121211001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222000121211001 is a deficient number, since it is larger than the sum of its proper divisors (140727438665607).

222000121211001 is a wasteful number, since it uses less digits than its factorization.

222000121211001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6620150.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222000121211001 its reverse (100112121000222), we get a palindrome (322112242211223).

The spelling of 222000121211001 in words is "two hundred twenty-two trillion, one hundred twenty-one million, two hundred eleven thousand, one".