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124212242212421 = 11210146643217907
BaseRepresentation
bin11100001111100001101010…
…100100101110011001000101
3121021210120111201122020200212
4130033201222210232121011
5112240043133001244141
61120102152154045205
735110016104216556
oct3417415244563105
9537716451566625
10124212242212421
113663a130582400
1211b211b8719805
135440219922c3c
142295c9431c32d
15e560a36ec2eb
hex70f86a92e645

124212242212421 has 24 divisors (see below), whose sum is σ = 137886190801632. Its totient is φ = 111799288172000.

The previous prime is 124212242212327. The next prime is 124212242212483.

124212242212421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 124212242212421 - 234 = 124195062343237 is a prime.

It is a super-2 number, since 2×1242122422124212 (a number of 29 digits) 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 (124212242212021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 569915150 + ... + 570133056.

It is an arithmetic number, because the mean of its divisors is an integer number (5745257950068).

Almost surely, 2124212242212421 is an apocalyptic number.

124212242212421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

124212242212421 is a deficient number, since it is larger than the sum of its proper divisors (13673948589211).

124212242212421 is a wasteful number, since it uses less digits than its factorization.

124212242212421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264673 (or 264662 counting only the distinct ones).

The product of its digits is 16384, while the sum is 32.

The spelling of 124212242212421 in words is "one hundred twenty-four trillion, two hundred twelve billion, two hundred forty-two million, two hundred twelve thousand, four hundred twenty-one".

Divisors: 1 11 101 121 1111 12221 46643 217907 513073 2396977 4710943 5643803 22008607 26366747 51820373 242094677 570024103 2663041447 10163836201 111802198211 1026547456301 1229824180321 11292022019311 124212242212421