124006652361221 has 4 divisors (see below), whose sum is σ = 141721888412832. Its totient is φ = 106291416309612.

The previous prime is 124006652361217. The next prime is 124006652361233. The reversal of 124006652361221 is 122163256600421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 124006652361221 - 2² = 124006652361217 is a prime.

It is a super-2 number, since 2×124006652361221² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124006652361271) 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, 8857618025795 + ... + 8857618025808.

It is an arithmetic number, because the mean of its divisors is an integer number (35430472103208).

Almost surely, 2^{124006652361221} is an apocalyptic number.

It is an amenable number.

124006652361221 is a deficient number, since it is larger than the sum of its proper divisors (17715236051611).

124006652361221 is an equidigital number, since it uses as much as digits as its factorization.

124006652361221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17715236051610.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 124006652361221 in words is "one hundred twenty-four trillion, six billion, six hundred fifty-two million, three hundred sixty-one thousand, two hundred twenty-one".