222111110021001 has 8 divisors (see below), whose sum is σ = 296148812935200. Its totient is φ = 148073740227072.

The previous prime is 222111110020967. The next prime is 222111110021027. The reversal of 222111110021001 is 100120011111222.

It is a happy number.

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

It is not a de Polignac number, because 222111110021001 - 2¹³ = 222111110012809 is a prime.

It is a super-2 number, since 2×222111110021001² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (222111110021081) 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, 81720120 + ... + 84394313.

It is an arithmetic number, because the mean of its divisors is an integer number (37018601616900).

Almost surely, 2^{222111110021001} is an apocalyptic number.

It is an amenable number.

222111110021001 is a deficient number, since it is larger than the sum of its proper divisors (74037702914199).

222111110021001 is a wasteful number, since it uses less digits than its factorization.

222111110021001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166560135.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 222111110021001 its reverse (100120011111222), we get a palindrome (322231121132223).

The spelling of 222111110021001 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred ten million, twenty-one thousand, one".