1223150101 has 4 divisors (see below), whose sum is σ = 1243201804. Its totient is φ = 1203098400.

The previous prime is 1223150077. The next prime is 1223150129. The reversal of 1223150101 is 1010513221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1010513221 = 20551 ⋅49171.

It can be written as a sum of positive squares in 2 ways, for example, as 541679076 + 681471025 = 23274^2 + 26105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1223150101 - 2⁵ = 1223150069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223100101) 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, 10025760 + ... + 10025881.

It is an arithmetic number, because the mean of its divisors is an integer number (310800451).

Almost surely, 2^1223150101 is an apocalyptic number.

It is an amenable number.

1223150101 is a deficient number, since it is larger than the sum of its proper divisors (20051703).

1223150101 is an equidigital number, since it uses as much as digits as its factorization.

1223150101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20051702.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1223150101 is about 34973.5628868435. The cubic root of 1223150101 is about 1069.4486054713.

Adding to 1223150101 its reverse (1010513221), we get a palindrome (2233663322).

The spelling of 1223150101 in words is "one billion, two hundred twenty-three million, one hundred fifty thousand, one hundred one".