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1220222132 = 22305055533
BaseRepresentation
bin100100010111011…
…0001110010110100
310011001001201002022
41020232301302310
54444334102012
6321025332312
742144500633
oct11056616264
93131051068
101220222132
11576868a48
122a0797098
13165a54a3c
14b80b551a
15721d2472
hex48bb1cb4

1220222132 has 6 divisors (see below), whose sum is σ = 2135388738. Its totient is φ = 610111064.

The previous prime is 1220222119. The next prime is 1220222173. The reversal of 1220222132 is 2312220221.

It can be written as a sum of positive squares in only one way, i.e., 765850276 + 454371856 = 27674^2 + 21316^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1220222132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 152527763 + ... + 152527770.

It is an arithmetic number, because the mean of its divisors is an integer number (355898123).

Almost surely, 21220222132 is an apocalyptic number.

It is an amenable number.

1220222132 is a deficient number, since it is larger than the sum of its proper divisors (915166606).

1220222132 is a wasteful number, since it uses less digits than its factorization.

1220222132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305055537 (or 305055535 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1220222132 is about 34931.6780587478. The cubic root of 1220222132 is about 1068.5945772095.

Adding to 1220222132 its reverse (2312220221), we get a palindrome (3532442353).

The spelling of 1220222132 in words is "one billion, two hundred twenty million, two hundred twenty-two thousand, one hundred thirty-two".

Divisors: 1 2 4 305055533 610111066 1220222132