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1220110202012 = 221393493250967
BaseRepresentation
bin10001110000010100001…
…111000011010010011100
311022122022120121012222012
4101300110033003102130
5124442241202431022
62332302204010352
7154102316412422
oct21602417032234
94278276535865
101220110202012
1143049a445559
121785705309b8
138b095a68920
14430a72d9112
1521b10473de2
hex11c143c349c

1220110202012 has 24 divisors (see below), whose sum is σ = 2299472214816. Its totient is φ = 563119518528.

The previous prime is 1220110202009. The next prime is 1220110202029. The reversal of 1220110202012 is 2102020110221.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 4736153 + ... + 4987119.

It is an arithmetic number, because the mean of its divisors is an integer number (95811342284).

Almost surely, 21220110202012 is an apocalyptic number.

It is an amenable number.

1220110202012 is a deficient number, since it is larger than the sum of its proper divisors (1079362012804).

1220110202012 is a wasteful number, since it uses less digits than its factorization.

1220110202012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344477 (or 344475 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1220110202012 its reverse (2102020110221), we get a palindrome (3322130312233).

The spelling of 1220110202012 in words is "one trillion, two hundred twenty billion, one hundred ten million, two hundred two thousand, twelve".

Divisors: 1 2 4 13 26 52 93493 186986 250967 373972 501934 1003868 1215409 2430818 3262571 4861636 6525142 13050284 23463657731 46927315462 93854630924 305027550503 610055101006 1220110202012