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BaseRepresentation
bin1110100010111…
…10100001110001
322111121100201101
413101132201301
5222214201001
620035204401
73011112163
oct721364161
9274540641
10122022001
1162972a32
1234a46701
131c38438a
14122c4933
15aaa4a01
hex745e871

122022001 has 2 divisors, whose sum is σ = 122022002. Its totient is φ = 122022000.

The previous prime is 122021993. The next prime is 122022007. The reversal of 122022001 is 100220221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 121022001 + 1000000 = 11001^2 + 1000^2 .

It is a cyclic number.

It is not a de Polignac number, because 122022001 - 23 = 122021993 is a prime.

It is not a weakly prime, because it can be changed into another prime (122022007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61011000 + 61011001.

It is an arithmetic number, because the mean of its divisors is an integer number (61011001).

Almost surely, 2122022001 is an apocalyptic number.

It is an amenable number.

122022001 is a deficient number, since it is larger than the sum of its proper divisors (1).

122022001 is an equidigital number, since it uses as much as digits as its factorization.

122022001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 122022001 is about 11046.3569107647. The cubic root of 122022001 is about 495.9973782054.

Adding to 122022001 its reverse (100220221), we get a palindrome (222242222).

The spelling of 122022001 in words is "one hundred twenty-two million, twenty-two thousand, one".