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122002010021 = 414369201367
BaseRepresentation
bin111000110011111100…
…0101110111110100101
3102122220112022020221202
41301213320232332211
53444330003310041
6132014050252245
711546215655213
oct1614770567645
9378815266852
10122002010021
1147816a54961
121b78a287085
13b673bb6598
145c951a5cb3
153290b13a9b
hex1c67e2efa5

122002010021 has 8 divisors (see below), whose sum is σ = 127884128064. Its totient is φ = 116258294880.

The previous prime is 122002009967. The next prime is 122002010071. The reversal of 122002010021 is 120010200221.

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 not a de Polignac number, because 122002010021 - 218 = 122001747877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122002009984 and 122002010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122002010071) 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 7 ways as a sum of consecutive naturals, for example, 34598921 + ... + 34602446.

It is an arithmetic number, because the mean of its divisors is an integer number (15985516008).

Almost surely, 2122002010021 is an apocalyptic number.

It is an amenable number.

122002010021 is a deficient number, since it is larger than the sum of its proper divisors (5882118043).

122002010021 is an equidigital number, since it uses as much as digits as its factorization.

122002010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69201451.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122002010021 its reverse (120010200221), we get a palindrome (242012210242).

The spelling of 122002010021 in words is "one hundred twenty-two billion, two million, ten thousand, twenty-one".

Divisors: 1 41 43 1763 69201367 2837256047 2975658781 122002010021