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122130002021 = 9711117112603
BaseRepresentation
bin111000110111110000…
…0111111000001100101
3102200020110010220222012
41301233200333001211
54000110240031041
6132034501444005
711552331613556
oct1615740770145
9380213126865
10122130002021
1147882225175
121b805110605
13b69457b0b1
145ca81a232d
15329be973eb
hex1c6f83f065

122130002021 has 8 divisors (see below), whose sum is σ = 122366316384. Its totient is φ = 121893917040.

The previous prime is 122130002011. The next prime is 122130002063. The reversal of 122130002021 is 120200031221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122130002021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122130001987 and 122130002005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122130002011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1028306 + ... + 1140908.

It is an arithmetic number, because the mean of its divisors is an integer number (15295789548).

Almost surely, 2122130002021 is an apocalyptic number.

It is an amenable number.

122130002021 is a deficient number, since it is larger than the sum of its proper divisors (236314363).

122130002021 is a wasteful number, since it uses less digits than its factorization.

122130002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114691.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 122130002021 its reverse (120200031221), we get a palindrome (242330033242).

The spelling of 122130002021 in words is "one hundred twenty-two billion, one hundred thirty million, two thousand, twenty-one".

Divisors: 1 971 1117 112603 1084607 109337513 125777551 122130002021