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212021121107 is a prime number
BaseRepresentation
bin1100010101110101110…
…0011001000001010011
3202021021010010220120002
43011131130121001103
511433204401333412
6241222352240215
721214036536215
oct3053534310123
9667233126502
10212021121107
1181a10439434
123511154006b
1316cbb96a4a3
14a39483a5b5
1557ad9b7dc2
hex315d719053

212021121107 has 2 divisors, whose sum is σ = 212021121108. Its totient is φ = 212021121106.

The previous prime is 212021121097. The next prime is 212021121131. The reversal of 212021121107 is 701121120212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212021121107 - 224 = 212004343891 is a prime.

It is not a weakly prime, because it can be changed into another prime (212021121167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010560553 + 106010560554.

It is an arithmetic number, because the mean of its divisors is an integer number (106010560554).

Almost surely, 2212021121107 is an apocalyptic number.

212021121107 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021121107 is an equidigital number, since it uses as much as digits as its factorization.

212021121107 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 212021121107 its reverse (701121120212), we get a palindrome (913142241319).

The spelling of 212021121107 in words is "two hundred twelve billion, twenty-one million, one hundred twenty-one thousand, one hundred seven".