222101000121 has 256 divisors, whose sum is σ = 446439555072. Its totient is φ = 94357094400.

The previous prime is 222101000119. The next prime is 222101000123. The reversal of 222101000121 is 121000101222.

It is an interprime number because it is at equal distance from previous prime (222101000119) and next prime (222101000123).

It is not a de Polignac number, because 222101000121 - 2¹ = 222101000119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222101000097 and 222101000106.

It is not an unprimeable number, because it can be changed into a prime (222101000123) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 58553601 + ... + 58557393.

It is an arithmetic number, because the mean of its divisors is an integer number (1743904512).

Almost surely, 2^222101000121 is an apocalyptic number.

222101000121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

222101000121 is an abundant number, since it is smaller than the sum of its proper divisors (224338554951).

222101000121 is a wasteful number, since it uses less digits than its factorization.

222101000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3912.

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

Adding to 222101000121 its reverse (121000101222), we get a palindrome (343101101343).

The spelling of 222101000121 in words is "two hundred twenty-two billion, one hundred one million, one hundred twenty-one", and thus it is an aban number.