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1020122213 = 11175992461
BaseRepresentation
bin111100110011011…
…101010001100101
32122002112120121012
4330303131101211
54042122402323
6245120432005
734164616145
oct7463352145
92562476535
101020122213
11483917a10
12245778605
13133464116
14996a8925
155e858678
hex3ccdd465

1020122213 has 16 divisors (see below), whose sum is σ = 1198307520. Its totient is φ = 858028800.

The previous prime is 1020122203. The next prime is 1020122219. The reversal of 1020122213 is 3122210201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1020122213 - 28 = 1020121957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020122219) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 35198 + ... + 57263.

It is an arithmetic number, because the mean of its divisors is an integer number (74894220).

Almost surely, 21020122213 is an apocalyptic number.

It is an amenable number.

1020122213 is a deficient number, since it is larger than the sum of its proper divisors (178185307).

1020122213 is a wasteful number, since it uses less digits than its factorization.

1020122213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92548.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1020122213 is about 31939.3521067663. The cubic root of 1020122213 is about 1006.6629113471.

Adding to 1020122213 its reverse (3122210201), we get a palindrome (4142332414).

The spelling of 1020122213 in words is "one billion, twenty million, one hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 11 17 59 187 649 1003 11033 92461 1017071 1571837 5455199 17290207 60007189 92738383 1020122213