121624632520261 has 16 divisors (see below), whose sum is σ = 131032091145088. Its totient is φ = 112224565195200.

The previous prime is 121624632520243. The next prime is 121624632520271. The reversal of 121624632520261 is 162025236426121.

It is a cyclic number.

It is not a de Polignac number, because 121624632520261 - 2⁵ = 121624632520229 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 (121624632520201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1416981616 + ... + 1417067446.

It is an arithmetic number, because the mean of its divisors is an integer number (8189505696568).

Almost surely, 2^{121624632520261} is an apocalyptic number.

It is an amenable number.

121624632520261 is a deficient number, since it is larger than the sum of its proper divisors (9407458624827).

121624632520261 is a wasteful number, since it uses less digits than its factorization.

121624632520261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127612.

The product of its (nonzero) digits is 414720, while the sum is 43.

Adding to 121624632520261 its reverse (162025236426121), we get a palindrome (283649868946382).

The spelling of 121624632520261 in words is "one hundred twenty-one trillion, six hundred twenty-four billion, six hundred thirty-two million, five hundred twenty thousand, two hundred sixty-one".