1222662101 has 4 divisors (see below), whose sum is σ = 1242705804. Its totient is φ = 1202618400.

The previous prime is 1222662071. The next prime is 1222662121. The reversal of 1222662101 is 1012662221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129367876 + 1093294225 = 11374^2 + 33065^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222662101 - 2¹⁸ = 1222399957 is a prime.

It is a super-2 number, since 2×1222662101² = 2989805226443468402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222662121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10021760 + ... + 10021881.

It is an arithmetic number, because the mean of its divisors is an integer number (310676451).

Almost surely, 2^1222662101 is an apocalyptic number.

It is an amenable number.

1222662101 is a deficient number, since it is larger than the sum of its proper divisors (20043703).

1222662101 is an equidigital number, since it uses as much as digits as its factorization.

1222662101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20043702.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1222662101 is about 34966.5854924383. The cubic root of 1222662101 is about 1069.3063606395.

The spelling of 1222662101 in words is "one billion, two hundred twenty-two million, six hundred sixty-two thousand, one hundred one".