222100120001001 has 32 divisors (see below), whose sum is σ = 332005511771136. Its totient is φ = 130881452184000.

The previous prime is 222100120000991. The next prime is 222100120001017. The reversal of 222100120001001 is 100100021001222.

It is not a de Polignac number, because 222100120001001 - 2⁶ = 222100120000937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222100120001101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58347055 + ... + 62036916.

It is an arithmetic number, because the mean of its divisors is an integer number (10375172242848).

Almost surely, 2^{222100120001001} is an apocalyptic number.

It is an amenable number.

222100120001001 is a deficient number, since it is larger than the sum of its proper divisors (109905391770135).

222100120001001 is a wasteful number, since it uses less digits than its factorization.

222100120001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120385533.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 222100120001001 its reverse (100100021001222), we get a palindrome (322200141002223).

The spelling of 222100120001001 in words is "two hundred twenty-two trillion, one hundred billion, one hundred twenty million, one thousand, one".