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122002202201021 is a prime number
BaseRepresentation
bin11011101111010111011001…
…111011001000101110111101
3120222222022000020110021210022
4123233113121323020232331
5111442341002230413041
61111251012110421525
734461240206116322
oct3357273173105675
9528868006407708
10122002202201021
113596793060823a
1211824a168018a5
13530c9b1cb346c
14221ad1c1b0b49
15e18855b3724b
hex6ef5d9ec8bbd

122002202201021 has 2 divisors, whose sum is σ = 122002202201022. Its totient is φ = 122002202201020.

The previous prime is 122002202200987. The next prime is 122002202201023. The reversal of 122002202201021 is 120102202200221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89802365440921 + 32199836760100 = 9476411^2 + 5674490^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122002202201021 is a prime.

Together with 122002202201023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122002202201023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61001101100510 + 61001101100511.

It is an arithmetic number, because the mean of its divisors is an integer number (61001101100511).

Almost surely, 2122002202201021 is an apocalyptic number.

It is an amenable number.

122002202201021 is a deficient number, since it is larger than the sum of its proper divisors (1).

122002202201021 is an equidigital number, since it uses as much as digits as its factorization.

122002202201021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122002202201021 its reverse (120102202200221), we get a palindrome (242104404401242).

The spelling of 122002202201021 in words is "one hundred twenty-two trillion, two billion, two hundred two million, two hundred one thousand, twenty-one".