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1220120212193 = 27716072740987
BaseRepresentation
bin10001110000010100110…
…101001111001011100001
311022122100021102210100122
4101300110311033023201
5124442301233242233
62332303202330025
7154102500453551
oct21602465171341
94278307383318
101220120212193
114304a5062333
12178573959915
138b097b61ccc
14430a8783161
1521b1129ed98
hex11c14d4f2e1

1220120212193 has 8 divisors (see below), whose sum is σ = 1225287419712. Its totient is φ = 1214958490416.

The previous prime is 1220120212183. The next prime is 1220120212211. The reversal of 1220120212193 is 3912120210221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1220120212193 - 24 = 1220120212177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220120212123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 925355 + ... + 1815632.

It is an arithmetic number, because the mean of its divisors is an integer number (153160927464).

Almost surely, 21220120212193 is an apocalyptic number.

It is an amenable number.

1220120212193 is a deficient number, since it is larger than the sum of its proper divisors (5167207519).

1220120212193 is a wasteful number, since it uses less digits than its factorization.

1220120212193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2742871.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 1220120212193 in words is "one trillion, two hundred twenty billion, one hundred twenty million, two hundred twelve thousand, one hundred ninety-three".

Divisors: 1 277 1607 445139 2740987 759253399 4404766109 1220120212193