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2001122122 = 21725036883
BaseRepresentation
bin111011101000110…
…1011001101001010
312011110110112111011
41313101223031022
513044241401442
6530322554134
7100406154166
oct16721531512
95143415434
102001122122
1193764373a
1247a20894a
1325b77b03c
1414daabca6
15baa35117
hex7746b34a

2001122122 has 24 divisors (see below), whose sum is σ = 3195442656. Its totient is φ = 939695808.

The previous prime is 2001122117. The next prime is 2001122143. The reversal of 2001122122 is 2212211002.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 287293 + ... + 294175.

It is an arithmetic number, because the mean of its divisors is an integer number (133143444).

Almost surely, 22001122122 is an apocalyptic number.

2001122122 is a deficient number, since it is larger than the sum of its proper divisors (1194320534).

2001122122 is a wasteful number, since it uses less digits than its factorization.

2001122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422 (or 7405 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 2001122122 is about 44733.9034961180. The cubic root of 2001122122 is about 1260.1566366956.

Adding to 2001122122 its reverse (2212211002), we get a palindrome (4213333124).

The spelling of 2001122122 in words is "two billion, one million, one hundred twenty-two thousand, one hundred twenty-two".