124011120212 has 18 divisors (see below), whose sum is σ = 252451209402. Its totient is φ = 53147622864.

The previous prime is 124011120203. The next prime is 124011120217. The reversal of 124011120212 is 212021110421.

It can be written as a sum of positive squares in only one way, i.e., 121336575556 + 2674544656 = 348334^2 + 51716^2 .

It is a super-2 number, since 2×124011120212² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124011120217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 316354703 + ... + 316355094.

It is an arithmetic number, because the mean of its divisors is an integer number (14025067189).

Almost surely, 2^124011120212 is an apocalyptic number.

It is an amenable number.

124011120212 is an abundant number, since it is smaller than the sum of its proper divisors (128440089190).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124011120212 is a wasteful number, since it uses less digits than its factorization.

124011120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632709815 (or 632709806 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 124011120212 its reverse (212021110421), we get a palindrome (336032230633).

The spelling of 124011120212 in words is "one hundred twenty-four billion, eleven million, one hundred twenty thousand, two hundred twelve".