222012121111001 has 16 divisors (see below), whose sum is σ = 239926297653504. Its totient is φ = 204218280117504.

The previous prime is 222012121110953. The next prime is 222012121111007. The reversal of 222012121111001 is 100111121210222.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222012121111001 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (222012121111007) 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, 11750975 + ... + 24126948.

It is an arithmetic number, because the mean of its divisors is an integer number (14995393603344).

Almost surely, 2^{222012121111001} is an apocalyptic number.

It is an amenable number.

222012121111001 is a deficient number, since it is larger than the sum of its proper divisors (17914176542503).

222012121111001 is a wasteful number, since it uses less digits than its factorization.

222012121111001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35879600.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 222012121111001 its reverse (100111121210222), we get a palindrome (322123242321223).

The spelling of 222012121111001 in words is "two hundred twenty-two trillion, twelve billion, one hundred twenty-one million, one hundred eleven thousand, one".