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1220210122 = 217231560371
BaseRepresentation
bin100100010111010…
…1110110111001010
310011001001002121111
41020232232313022
54444333210442
6321025200534
742144420625
oct11056566712
93131032544
101220210122
1157685aa1a
122a079014a
13165a4c431
14b80b0dbc
15721cdb17
hex48baedca

1220210122 has 16 divisors (see below), whose sum is σ = 2022242112. Its totient is φ = 549250240.

The previous prime is 1220210107. The next prime is 1220210129. The reversal of 1220210122 is 2210120221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1220210129) 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 7 ways as a sum of consecutive naturals, for example, 779404 + ... + 780967.

It is an arithmetic number, because the mean of its divisors is an integer number (126390132).

Almost surely, 21220210122 is an apocalyptic number.

1220210122 is a deficient number, since it is larger than the sum of its proper divisors (802031990).

1220210122 is a wasteful number, since it uses less digits than its factorization.

1220210122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560413.

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

The square root of 1220210122 is about 34931.5061513242. The cubic root of 1220210122 is about 1068.5910713279.

Adding to 1220210122 its reverse (2210120221), we get a palindrome (3430330343).

The spelling of 1220210122 in words is "one billion, two hundred twenty million, two hundred ten thousand, one hundred twenty-two".

Divisors: 1 2 17 23 34 46 391 782 1560371 3120742 26526307 35888533 53052614 71777066 610105061 1220210122